I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

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

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

People make me, save me, change me, raise me. What am I?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?