If it took eight men ten hours to build a wall, how long would it take four men to build it?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

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?

Which of the below owl is odd one out?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

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

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

When is the top of a mountain similar to a savings account?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?