Replace the question mark with the correct number.

Using Only Five 5's and any mathematical operator make sum as 37

What does below rebus means ?

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?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

I add 5 to 9 and get 2. The answer is correct, so what am I?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

Count the Triangle in the figure given below:

Complete the table series riddle by finding the number that can replace "??".