There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?
Can you tell a 3D object that has just two surfaces?
Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?
What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?
There are 2 sand hourglasses. The small one can measure 5 hours and the large one can measure 7 hours. How can we measure 16 hours with 2 sand hourglasses running together ?
I am the fastest animal but cannot climb the tree. What am I?
Why do you find that most of the buildings are deprived of the 13th floor?
What is the difference between a jeweller and a jailer?
A lion and its tamer are standing inside a cage that measures 1 unit in radius. Both of them can effortlessly run at the speed of 1 unit maximum. 1) Suppose the lion is hungry, will he be able to eat up the tamer? 2) If yes, how long can the tamer survive?
What do you get if you add 2 to 100 four times?
How could a baby fall out of a twenty-story building onto the ground and live?
Artificial Intelligence has crushed all human records in the puzzle game “2048,” achieving a high score of 839,732 and beating the game in only 973 moves without using any undo.
