What does does this rebus picture means ?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

Prove that twice of ten is the same as twice of eleven.

What kind of band never plays music?

What is the word or phrase?

What has a ring but no finger?

Find the missing number in the sequence below:

The answer I give is yes, but what I mean is no. What was the question?