How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

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 does a man do only once in his lifetime, but women do once a year after they are 29?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

What 5-letter word typed in all capital letters can be read the same upside down?

Can you name four days which start with the letter 'T'?

Can you make a six-letter word using the letters N, A and B ?

How can you tell a raw egg from a hard-boiled egg?

What has hands, but can’t clap?