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

You have 21 jars with you. Out of them, 7 are filled with water, 7 are half-full with water and 7 are empty. How will you distribute the jars among three people such that each one of them gets an equal number of jars and an equal amount of water?

I don't get anymore wetter, no matter how much rain falls on me.

Can you identify the Oscar-winning movie from the rebus below?

Why is a river so rich ?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

What question can you never answer yes to?

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?