Can you spot the hidden girl in the picture below?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

How many Watermelons are there in the below picture?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.