Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Find the number of squares in the below picture

Eight of us go fourth, not back, to protect our king from an attack. What are we?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

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?