How can you drop a raw egg from a height onto a concrete floor without cracking it?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Solve the rebus riddle in the picture below.

Replace The Question Mark Below With the Correct Number.

2 {38} 3
4 {1524} 5
6 {3548} 7
8 {????} 9

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

Move three sticks of the spiral below to form a square.

You are playing as white and given four rooks to checkmate the black king in four moves with the following rules 1. You can place one rook every move and ensure the black king should be in check position.2. After four moves the black king should be in the checkmate position.

Why do people go to bed?

How is a fly different from a mosquito?