If eleven plus two equals one, what does nine plus five equal?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

There were five men at church, and it started raining while they were outside. The four that ran still got wet, but the one that was still stayed completely dry. Why did he stay dry?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

John is the son of Jacob.
So,
Jacob is the_____of John's father?

Which number should replace the question mark?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

What two things can you never eat for breakfast?

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?