Which number comes next in the number series?

2, 9, 30, 93, ?

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?

Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?

Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?

What is the end of everything?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

What does this rebus riddle means ?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Write the next letter in this sequence.
O, T, T, F, F, S, S, E, __
**Hint: It is a Number Series Puzzle