Replace the question mark with the correct number.

Replace the question mark with the correct number in the below-given picture?

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

Can you spot the hidden girl in the picture below?

Replace the question mark in the picture below.

Prove that twice of ten is the same as twice of eleven.

What word begins and ends with an E, but has only one letter?

What has one letter and starts with an E?

What number divided by 4 is the same as that number minus 4?

Eight Chelsea player makes the following statements :

1. Seven of us are lying here.
2. Six of us are lying here.
3. Five of us are lying here.
4. Five of us are lying here.
5. Four of us are lying here.
6. Three of us are lying here.
7. My name is Torres.
8. My name is Lampard.

The last two are Lampard and Torres or maybe Torres and Lampard.
So can you deduce which of the last two is Lampard or Torres?