What does this rebus riddle means ?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

John bought 150 chocolates but he misplaced some of them. His Father asked him how many chocolates were misplaced.
He gave the following answer to him:
If you count in pairs, one remains
If you count in threes, two remain
If you count in fours, three remain
If you count in fives, four remain
If you count in sixes, five remain
If you count in sevens, no chocolate remains.

Can you analyze the statements and tell us how many chocolates were lost?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Rebus Puzzle Definition: A rebus is an illusion device that uses pictures to represent words or parts of words.
What does This Rebus Puzzle Identify?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

Take away the whole and some still remain. What is it?