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?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

On rolling two dices (six-sided normal dice) together, what is the probability that the first one comes up with a 2 and the second one comes up with a 5?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Can you find the key in the picture below?

What has a ring but no finger?

A man was just doing his job when his suit was torn. Why did he die three minutes later?