Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

What will you call your mother's brother's brother-in-law?

How many times can you subtract the number two from the number fifty?

Can you name an animal whose killing cannot be performed without spilling your own blood?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

A game is being played where eight players can last for thirty-five minutes. Six substitutes alternate with each player in this game. Thus, all players are on the pitch for the same amount of time including the substitutes.

For how long is each player on the pitch?

Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

10+10 and 11+11 can give you the same answer.

Explain how?

Which letter of the alphabet has the most water?