Oh Lucky Game (Grade 8)

Game rules:

At the very beginning of the marathon, all students participate. Those of the guys who cannot answer 3 questions will be eliminated from the game in the future. Guys who will no longer be able to participate in this marathon are offered ingenuity tasks.
So, take the pens and you will mark your answers on the sheets. We will check the correctness before reading the next question. Whoever tries and answers all the questions will be the winner. Or maybe the whole class will be the winner? Good luck guys.

Ingenuity tasks:

1. 1. A woman was walking to Moscow and met three men. Each of them carried a bag, each bag carrying a cat. How many creatures were heading to Moscow? (1)
   2. A flock of geese flew, one in front and two behind, one behind and two in front; one between two and three in a row How many geese were there? (3)
   3. The trade, sitting at the market, thought: "If you added half of them and a dozen more to my apples, then I would have a whole hundred" How many apples did she have? (60)
   4. Two praying mantises went to Trinity - Sergius Lavra Both of them passed 60 versts How many versts did each pass if they walked at the same speed? (60)
   5. How many ends do four sticks have? Five sticks? Five and a half sticks?       (cannot be)
   6. Watermelon costs 10 kopecks. and half a watermelon. How much does a watermelon cost?             (20 kopecks)
   7. 6 fishermen ate 6 pike perch in 6 days How many days will 10 fishermen eat 10 pike perch? (6 days)
   8. Half - third of a number What number is that?  (1.5)
   9. There are 35 students in the class - Three more boys than girls How many boys and how many girls?       (19mal. and 16 virgins)
   10. What number is divisible by all numbers without a remainder?  (0)
   11. Two collective farmers went to the city and met 5 collective farmers. How many collective farmers went to the city? (2)
   12. 5 candles were burning Two of them went out. How many candles are left?    (2)
   13. What is heavier: a ton of down or a ton of iron? (equally)
   14. There were 10 birds sitting on a tree. Hunter shot and shot one bird. How many birds are left on the tree? (none)
   15. One stool weighs 3kg, and two stools like that? (6 kg)
   16. Two squared - 4, three squared - 9, what is the angle squared? (900)
   17. A rooster standing on one leg weighs 3 kg. How much does it weigh standing on two legs? (3 kg)
   18. A pear is heavier than an apple, and an apple is heavier than a peach. Which is heavier - a pear or a peach? (pear)
   19. In my family I grew up alone in the world

And it's true, to the end.
But the son of the one in the portrait, the Son of my father.
Who is depicted in the portrait?   (my father)

1. One person bought three goats and paid 3 rubles. The question is: what did each goat go for? (on grass)
2. Two went - 3 nails found. Four will follow - how many nails will they find? (most likely they won't find anything)
3. What could it be: two heads, two arms and six legs, but only four in walking? (horse rider).

Questions:
Round 1 - Simple (Physics)

1. 2 minutes is 100c or 120c (120)
2. Ampere is a unit of current or voltage. (current)
3. In physics, is body weight measured in grams or kilograms? (kg)
4. Is it true that snow warms the ground? (yes)
5. In Joules, do they measure the operation or power of the current? (work)
6. When the Earth moves faster around the sun: at noon or midnight? (same)
7. Speedometer - is it a device for measuring speed or distance traveled? (speed)
8. If you slip, will you fall forward or back? (back)
9. Archimedes is a scientist's name or a unit of force? (both)
10. Can water be a solid? (yes - ice)

Round 2 - medium difficulty

1. Can a medical thermometer measure the temperature of boiling water? (no)
2. Where is the gravity greater: in Moscow or St. Petersburg? (S-P)
3. Should any object thrown up fall to the ground? (no, it all depends on the initial speed, if the speed is =8 km/s - artificial satellite)
4. If the ice is wrapped in fur, will it melt faster or slower? (slower, fur is a bad heat conductor)
5. Ion - is a particle having a charge or uncharged? (has "- or "+")
6. In Newtons, is force or pressure measured? (force)
7. Is a dynamometer a device for measuring body strength or weight? (both 0
8. The water was heated to 1000. in what state is it: liquid or as steam? (in both)
9. What's heavier: move the sled or carry it? (move it)

3 round - difficult

1. Which body weight is greater than: 1 liter of water or 1 kg of ice? (same)
2. What temperature is above 200 silt 280 Kelvin? (200)
3. In kilowatt - hours measure power or current operation? (work)
4. Plasma is a substance or a field? (substance)
5. Does an electron in an atom have a positive or negative charge? (negative)
6. Where does sound travel faster: in the air or in water? (in water)
7. A drop of rain falls to the ground: what shape does it have: round or in the form of a drop? (round)
8. Which glasses are more likely to crack from hot water: thick-walled or thin-walled? (thick-walled)
9. What color is the red flag in blue light (brown, black)
10. To quickly cool the water in the pan, do you need to put it on the snow or snow on top of the lid? (top)

Round 1 - Simple (mathematics)
We start the first round,
We'll find out the winners.
There are riddles and charades here.
For the solution - awards to everyone

1. What numbers are used when counting: integers or natural?
2. 5³ equal to (125)
3. Two plus two and everything squared is equal? (16)
4. How many peas can enter an empty glass? (peas don't move)
5. What is the name of the hundredth part of the number? (percentage)
6. Two cyclists left two villages towards each other: the first at a speed of 20 km/h, the second - 15 km/h. What is the distance between them 2 hours before the meeting? (70 km)
7. In a family, each of the six brothers has a sister How many children are there in this family? (7)
8. From the words you read, find the excess, and replace the rest with a general name: addition, subtraction, multiplication, fragmentation, division. (fractionation, actions)
9. There were 4 rabbits in the cage Four of the guys bought one rabbit each and one rabbit remained in the cage. How could this happen? (one rabbit was bought with the cage)
10. Marina had a whole apple, two halves and four quarters. How many apples did Marinka have? (4)

Round 2 - harder
Round two: let everyone know
Who calculates better?
I have to read the problems
You have to think and count!

1. There are three pounds of flour in the bag. How much do you need to pay for flour if one kilogram of flour costs 7 rubles? (1 pood=16 kg) (336)
2. What is the science of measuring the earth called? (geodesy)
3. What is greater: the product of all the digits or their sum? (sum)
4. The same figure was attributed to the single digit How many times has the number increased? (11)
5. 60 sheets of the book are 1 cm thick. What is the thickness of all sheets of the book if it contains 240 pages? (2cm)
6. The word is of Latin origin, meaning "flax, linen thread, cord, rope" Name the word as we use it now. (line)
7. The fox bought 100 kg of honey from bees for 1000 rubles, and began selling it at the market for 12 rubles per 1 kg. What income will the fox receive when he sells all the honey? (200 kg)
8. Take the first of the notes, and add the word move to it. You will get what anyone who starts a business dreams of. (income)
9. This name comes from the two Latin words "twice" and "secu", literally "cutting into two parts" What are we talking about? (about the bisector)

Round 3 - difficult
We are starting the third round,
We invite the strongest.
There will be difficult tasks
Let's wish them good luck!

1. 1. What is the name of the device that performed all four arithmetic actions, which was created in 1673 by the German physicist and mathematician Leibniz? (arithmometer)
   2. I - digit less than 10,
   3. You can find me easily,

But if you order the letter "I2"
Stand next to me, -I am everything!
Father and grandfather, both you and mother. (seven -i)

1. 1. A wolf was coming from fishing, met a fox and asked:

-Kuma, where have you been?
-Dunk in the river caught.
-Did you take a lot?
-Didn't get to twenty-two.
-And I've got two dozen and two more.
How many perches did the wolf and fox catch? (40)

1. Name the ancient geometric instrument that the Roman poet Ovid claims was invented in Ancient Greece. (circle).