There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Who are the happiest people in IPL match?

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

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

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

How can one talk without saying a single word?