who is silent in the parliament?

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

Can you divide the below-given shape into four equal and identical pieces?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

What can you see in the middle of March and April that you can never see in any other month?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

To attend world science seminar, A famous chemist from Mexico visit
London. In the lab, the scientist was killed and his six assistants were under suspicion of killing the chemist.
Name of six assistants: Austin, Wayne, Dege, Oscaru, Lingard, and Rojo.
He left a note "76-20-44 79-16-22-7"

A local detective Jack was called to solve the case,

After reading the note, Jack instantly asked the police to arrest the murderers.

Who are the murderers?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?