Riddles
Mathematics
Science
Top 10 Extreme Teasers Part 1
Top 10 Extreme Brain Teasers Part 2
100

What goes up but doesn't move?

Stairs

100

3 x 9

27

100

The variable kept continous

Controlled

100

If you have me, you want to share me. If you share me, you don't have me, what am I?

A secret

100

What is next in this sequence of numbers? 1, 11, 21, 1211, 111221, 312211, ______

13112221

200

What is in front of you but not seen?

Air

200

150 - 1

149

200

The variable measured

Dependent

200

There are 3 doors in front of you as you escape a labyrinth. Door 1 has a raging inferno, Door 2 has a deadly assassin and Door 3 has a lion that hasn't eaten in 3 months. Which one is safest to choose?

Door 3

200

A rebus is a pictogram that represents a word, phrase, or saying. For example, "Ci ii" represents "See eye to eye". What is represented by o_er_t_o_ ?

Painless Operation

300

What comes but never arrives?

Tomorrow

300

Square root of 7?

2.65

300

What is the meaning of life?

The condition that distinguishes organisms from inorganic objects and dead organisms, being manifested by growth via metabolism, reproduction and adaptation to environments via changes originating internally

300

If I hold a bee, what do I have in my eye?

Beauty

300

4 People arrive at a river with a narrow bridge that holds only 2 at a time. It's night and they have only 1 torch that they must use to cross. Person A can do it in 1 min, B in 2 min, C in 5 min and D in 8 min. When 2 people cross together, they must move at the slower person's pace. Can they all cross in 15 min or less? 

Yes they cross in 15 min

400

What lives when eating but dies when drinking?

Fire

400

Solve x3 y3 z3 K?

3xyz

400

What makes us human?

Bipedalism, tool making, and language

400

Turn me on my side and I'm everything#. Cut me in half and I'll be nothing##. What am I?

The number 8

# Infinity

## Infinity in half = zero

400

You're in a dark room with a candle, wood stove and gas lamp. You only have 1 match, so what do you light first?

The match

500

I turn polar bears white, make guys have to pee, make you cry, make girls comb their hair, make celebrities look stupid and normal people look famous, makes champagne bubble and brown pancakes. If you squeeze me, I'll pop but looking at me will make you pop. Can you guess the riddle?

No

500

9992

998001

500
How much DNA will make us human?

7 %

500

You walk down a road and come to a fork. One road leads to Certain Death, and the other leads to eternal joy. You don't know which is which. In the middle, you see 2 brothers who actually DO know. One brother tells the truth and the other will lie. You can only ask them 1 question. How do you find the right path?

Ask each brother, "If you were your brother, which road would you say leads to eternal happiness?"

500

An old man dies, leaving 2 sons behind. In will, he orders them to race with their horses, and the slower one would get the inheritance. The 2 sons race, but since they're both holding their horses back, they go and ask a wise man what to do. After that, they race again at full speed this time. What did the wise man say?

To switch horses

M
e
n
u