What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

How many letters are in the alphabet?

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 kind of tree can you carry in your hand?

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

With the help clues provided in the image, can you find the 5 digit key?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.