What is more useful when it is broken?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

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

If an electric train is travelling south, then which way is the smoke going?

Find the missing number in the sequence below:

I’m tall when I’m young, and I’m short when I’m old. What am I?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

Two old friends, Jack and Jill, meet after a long time, and discussing as:

Jack: Hey, how are you, man?

Bill: Not bad, got married and I have three kids now.

Jack: That's awesome. How old are they?

Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.

Jack: Cool..But I still don't know.

Bill: My eldest kid just started taking piano lessons.

Jack: Oh, now I get it.

How old are Bill's kids?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

What has lots of eyes, but can’t see?