Why do we preferably have round manhole covers and not square ones?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

What is the end of everything?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Imagine you are in a room with no windows or doors. How will you get out?

Name a key which is hardest to turn.

Why do people go to bed?

Can you place six X (crosses) in below board without making three in a row in any way ?