How is the moon similar to a dollar?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

John was piloting a plane behind a car but was never able to overtake it. Why?

Can you spot the man between the coffee bean in the picture below ?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

Forwards I am heavy, backward I am not. What am I?

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

Can you fill the blank with the correct number?

6 30 870 756030 _____