How many times can you subtract the number two from the number fifty?

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

What breaks yet never falls, and what falls yet never breaks?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

Who always enjoys poor health?

Which number should replace the question mark?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

How many times can you subtract the number 5 from 25?

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?