Which Travels Faster? Solve below famous picture riddle:

How can you write nineteen in a manner that if we take out one, it becomes twenty?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

Why is 6 afraid of 7?

To attend world science seminar, A famous chemist from Mexico visit
London. In the lab, the scientist was killed and his six assistants were under suspicion of killing the chemist.
Name of six assistants: Austin, Wayne, Dege, Oscaru, Lingard, and Rojo.
He left a note "76-20-44 79-16-22-7"

A local detective Jack was called to solve the case,

After reading the note, Jack instantly asked the police to arrest the murderers.

Who are the murderers?

What is the riddle which can be asked all day with a different correct answer each time.

What have one eye but still cannot see?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?