What's the only room from which no one can enter or leave

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?

In the image given, you can find several triangles. Can you count them all?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Count the Triangle in the figure given below:

Can you name some countries which do not have the alphabet 'A' in them?

In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.

Other fruits like watermelons or mango had different machines as they were expensive.

A man successfully buys watermelons at the price of cherries. How?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Why is a river so rich ?

What do you call a fish without an eye?