Can you place six X (crosses) in below board without making three in a row in any way ?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

Mr. Buttons was all set to go to the village of Buttonland to meet his friend. So, he packed his bags and left for the village at 5 in the morning. Upon travelling on a road for miles, he came across a point where the road diverged into two. He was confused on which road to take. He gazed around and he saw two owls sitting on a branch. He thought he could ask for directions for the village from the two owls. So he went to the tree. There he saw a sign which read, "One owl always lies, and one is always truthful. They both fly away if you ask them more than 1 question."
Mr. Buttons was caught in the dilemma of what to ask? And from which owl to ask, since he only had one question. What should Mr. Buttons ask?

Can you circle exactly four of these numbers such that the total is twelve?

1 6 1
6 1 6
1 6 1
6 1 6

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

Can you move 2 matchsticks to form four equal sized squares.