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

What is the next number in the series?

15 29 56 108 208 ?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

Who can jump higher than a Mountain?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

I am sure no one can have two things for dinner. what are they?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

What do you see in the given picture?

I am sometimes honest
Sometimes dishonest
I can be sweet and also bitter
I can hurt you real bad and
also make u smile and blush ☺️
What am I?

Which Travels Faster? Solve below famous picture riddle: