Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

In the picture given below, can you find out which digit will take place of the question mark?

Decode the below four famous ciphers:

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

If a wheel has 54 spokes, how many spaces are there between the spokes?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.

How many miles does the pigeon travel?

Can you guess the name of the month by looking the below rebus ?

There is something which you can be arrested for attempting but not for successfully completing.

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?