What is the coolest letter in the alphabet?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

Why is a river so rich ?

Why is it very easy to weigh a fish?

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

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

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

While house hunting in London, I came across a very good leasehold property Discussing the lease the landlady told me:

'The property was originally on a 99 years lease and two-thirds of the time passed is equal to four-fifths of the time to come. Now work it out for yourself and see how many years are to go!

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?