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?

Why is a river so rich ?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

Different lights make me strange by changing me into different sizes. What am I?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

Suppose that you are trapped on the surface of a frozen lake. The surface is so smooth and ideal that there is no friction at all. You cant make any grip on the ice and no wind is blowing to help you out. You have just a mobile phone with you which has got no reception disabling you to call for help.

How will you plan your escape before you freeze to death on the frozen lake?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

What has lots of eyes, but can’t see?