Give it food and it will live; give it water and it will die.

What is the next number in this matchsticks series riddle?

You need to arrange three 7 and mathematical symbols to form number 1?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

I look at you, you look at me, I raise my right, you raise your left. What am I?

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

Can you write down eight eights so that they add up to one thousand?