There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?
In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat. Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.
If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?
The following question it puts forth you: 25 - 55 + (85 + 65) = ? Then, you are told that even though you might think it's wrong, the correct answer is actually 5! Whats your reaction to it? How can this be true?
Prove that twice of ten is the same as twice of eleven.
It begins where the time ends. Its second is an expression of surprise. Its third is a question. Its fourth is urinate. It ends with a drink. Which country it is?
The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?
If six children and two dogs were under an umbrella, how come none of them got wet?
Katniss and Peeta are liars. They both lie on some specific days. Katniss lies on Fridays, Saturdays and Sundays. She speaks the truth on all other days. Peeta lies on Tuesdays, Wednesdays and Thursdays. He speaks the truth on all other days. Can you tell that one day of the week when both of them will say "Tomorrow, I will lie."?
What three numbers, none of which is zero, give the same result whether they’re added or multiplied?
A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child. Where's the father?
In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.