What does the below rebus riddle means?

Who can jump higher than a Mountain?

What's the best place to go shopping in the ocean?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

Who is that with a neck and no head, two arms and no hands? What is it?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

You need to arrange three 7 and mathematical symbols to form number 1?

Can you replace the question mark with the correct number?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?