You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

What does below rebus means ?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

Can you count the number of rectangles on a chessboard?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?