It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

What Adam and Eve do not have but the rest of the people have?

I’m tall when I’m young, and I’m short when I’m old. What am I?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

Our product and our sum always give the same answer. Who are we?

Jim and Sarah are in a long-distance relationship. Jim buys an engagement ring for Sarah and wants to mail it to her. Unfortunately, the only way to ensure the ring will be received is to place a lock on the package. Jim has locks and Sarah has locks, but neither has keys for each other’s locks. How can they make sure the ring isn’t stolen?

You need to move three matchsticks to form three squares. Can you do it?