Find the next number in the series below

21 32 54 87 131 ?

One evening there was a murder in the home of a married couple, their son and daughter. One of these four people murdered one of the others. One of the members of the family witnessed the crime.

The other one helped the murderer.

These are the things we know for sure:

1. The witness and the one who helped the murderer were not of the same sex.

2. The oldest person and the witness were not of the same sex.

3. The youngest person and the victim were not of the same sex.

4. The one who helped the murderer was older than the victim.

5. The father was the oldest member of the family.

6. The murderer was not the youngest member of the family.

Who was the murderer?

Can you find out the remainder when 3^300 is divided by 5?

What is the word or phrase?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

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

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

O_er_t_o_

Complete the missing letters of the given word.

How many times can you subtract the number 5 from 25?