Just for Fun
Brain Teasers
Science Stuff
Math Challenges
Famous Inventors/ Discoveries
100

What color do you get if you mix red and blue?

Purple

100

I have keys but no locks. I have space but no room. You can enter but can’t go outside. What am I?

Key board

100

What do plants need to grow?

Sunlight, water, air, and soil

100

What is 12 ÷ 4?

3

100

Who invented the light bulb?

Thomas Edison 

200

Name a fruit that is green.

Kiwi, green apple, green grapes

200

What has hands but can’t clap?

A clock

200

What state of matter is water when frozen?

It’s ice, frozen

200

What is half of 50?

25

200

Who invented the first practical telephone for everyday use?

Alexander Graham Bell

300

Pretend you are an astronaut and describe what you see in space.

Answer varies 

Noon, stars, comet etc 

300

I’m tall when I’m young, and I’m short when I’m old. What am I?

Candle 

300

What is the largest organ in the human body?

Skin

300

A book costs $8. You buy 4. How much do you spend?

$32

300

Who invented the first modern telescope?

Galileo Galilei

400

Which video game character eats dots in a maze?

Pac man 

400

What begins with T, ends with T, and has T in it?

Teapot 

400

What gas do humans need to breathe to survive?

Oxygen 

400

If a rectangle is 6 cm long and 4 cm wide, what is its area?

24 cm²

400

Who invented the radio?

Guglielmo Marconi

500

Who is the main bad guy in Despicable Me at the start of the movie?

Vector 

500

You see me once in June, twice in November, and not at all in May. What am I?

The letter “E”

500

Name one planet in our solar system that is not visible without a telescope.

Uranus or neptune

500

What is the perimeter of a rectangle with length 7 cm and width 3 cm?

20 cm

500

Who invented the first practical airplane?

Wright brothers

600

In Toy Story 3, what is the daycare called where the toys end up?

SunnySide Daycare 

600

I speak without a mouth and hear without ears. I have no body, but I come alive with wind. What am I?

An echo 

600

How do animals adapt to survive in cold environments?

Fur, fat layers, hibernation, or migration

600

A farmer has 120 apples. He packs them equally into 8 baskets. Then, he sells 3 baskets. How many apples does he have left?

75 apples

Step 1: 120 ÷ 8 = 15 apples per basket. 

Step 2: 3 baskets × 15 = 45 sold. 

Step 3: 120 − 45 = 75 apples left

600

Who discovered the law of gravity after seeing an apple fall?

Isaac Newton

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