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

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

What demands an answer, but asks no questions

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

There are three Athletes (John, Tarun and Harish) and their individual Coaches (Jacob, Meenaxi and Priyanka) standing on the shore.
No Coach trusts their Athlete to be near any other Coach unless they are also with them.
There is a boat that can hold a maximum of two persons.
How can the six people get across the river?

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

Why is 6 afraid of 7?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59