Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Find the missing number in the image below.

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

What does the below rebus riddle means?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

Two friends were stuck in a cottage. They had nothing to do and thus they started playing cards. Suddenly the power went off and Friend 1 inverted the position of 15 cards in the normal deck of 52 cards and shuffled it. Now he asked Friend 2 to divide the cards into two piles (need not be equal) with equal number of cards facing up. The room was quite dark and Friend 2 could not see the cards. He thinks for a while and then divides the cards in two piles.

On checking, the count of cards facing up is same in both the piles. How could Friend 2 have done it ?

I taste better than I can smell. Who am I?

What does below rebus means ?

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