What question can you never answer yes to?

How can you make number one disappear by adding something to it?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

What 5-letter word typed in all capital letters can be read the same upside down?

Thirty friends were on a hiking trip when they decided to enjoy the bonfire. They assembled for it and agreed to play a game. For that, they divided themselves into five teams with seven members each, forming five rows.

How did they manage to achieve this formation?

Why do people go to bed?

Count the number of triangles in the below picture?