What does the below image rebus riddle means ?

What is full of holes but still holds water?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

Solve below rebus puzzle?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?