Find the next number in the series below

21 32 54 87 131 ?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

What month of the year has 28 days?

A man is found dead in his bathroom naked with blood scattered all around him. The bathroom was locked from the inside and there is no trace of any struggle. There is nothing in the bathroom except his pant with the belt still around and his shirt. Also, the medic team can't find any incision in his body that may have been the reason behind so much blood loss.

The Police department is clueless regarding this murder mystery.
Can you?

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

Can you replace the question mark with the correct number?

During which month do people sleep the least?

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

How many times do a clock's hands overlap in a day ?