What is the below Rebus indicate?

Christina is practising her dance steps along with her friends. In a particular sequence, all of them form a row. At that point, Niharika is standing in the 4th position from either end of the row.
Can you find out how many girls are practising together?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Why is the longest human nose just 11 inches?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

How can a man go eight days without sleep?

Four cars come to a four-way stop, each coming from a different direction. They can’t decide who got there first, so they all go forward at the same time. All 4 cars go, but none crash into each other. How is this possible?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

What runs around the whole yard without moving?

Do you know who was buried in John's tomb?