What does the below image rebus riddle means ?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

Can you find out which triangle will have a bigger area among the following?
1. A triangle with sides 300, 400 and 500
2. A triangle with sides 300, 400 and 700

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

There are 3 apples in the basket and you take away 2. How many apples do you have now?

Identify The phrase in the picture.

Which letter of the alphabet has the most water?