What do you answer even though it never asks you questions?

81 x 9 = 801. What must you do to make the this equation true?

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

We are a group of eight brothers. We consider the weak, yet we protect the king in every battle. If we move ahead, we never turn back. Who are we?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

There is something which you can be arrested for attempting but not for successfully completing.

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

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

What type of tree can I carry in my hand?

What question can you never answer yes to?