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

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

Replace the question mark with the correct number in below Picture:

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

What does this rebus riddle means ?