81 x 9 = 801. What must you do to make the this equation true?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

How many times in a given day, minutes and hour clock comes in a straight line ?

What does below chemistry rebus means?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

What has to be broken before you can use it?

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

What came first, the chicken or the egg?