What you cannot hold but it is yours?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

Find the next number in the sequence

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

This is a famous paradox which has caused a great deal of argument and disbelief from many who cannot accept the correct answer. Four balls are placed in a hat. One is white, one is blue and the other two are red. The bag is shaken and someone draws two balls from the hat. He looks at the two balls and announces that at least one of them is red. What are the chances that the other ball he has drawn out is also red?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Replace the question mark with the correct number below.

Can you guess the name of the month by looking the below rebus ?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.