Find out the number of circles in the given picture having Illusion

Find the next number in the series below

21 32 54 87 131 ?

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

What month of the year has 28 days?

Detective Rockford was jogging near the beach at 4:30 am.
He hears a sound near the shack "No Michael, Please Do not shoot me".
Next instance he heard the sound of gunfire. Rockford rushes to the shack where he finds women lying dead and a gun in close proximity of three "Doctore Lawyer and a Teacher".

Rockford immediately knew that the Lawyer has committed the crime. How?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

1. What does:
TIM JOB
represent?

2. What does:
MO_ _
represent?