Can you find the missing piece of the Porsche?

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

The dirtier I get, the whiter I look. Who am I?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

What has one letter and starts with an E?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

A father's child, a mother's child, yet no one's son.

Who am I?

A pet show was happening in my locality. I went down along with my kids. In that show, I noticed that all except two of the entries were cats. All except two were dogs and all except two were Monkeys.

Can you find out how many of each animals were present in that pet show?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211