Which is the correct shadow of the bird?

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?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

Solve the equation in the image by looking at the pattern closely.

Different lights make me strange by changing me into different sizes. What am I?

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

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

What can you hold in your right hand, but never in your left hand?

Find the next number in the sequence

1, 2, 6, 21, 88, __?