What number when divided in half becomes zero?

When is the top of a mountain similar to a savings account?

When we see 2 but call 10?

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

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

What is the coolest letter in the alphabet?

What does Alexander the Great and Winnie the Pooh have in common?

Why is a river so rich ?

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?