A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Forwards I am heavy, backward I am not. What am I?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

When it is alive we sing, when it is dead we clap our hands. What is it?

In order to complete the racing competition, the Mexico racetrack has to submit its top and the most famous three horses to win the competition. Due to an electrical storm, all the records are cleared and no one knows which horse holds the record. They all look identical and it becomes even more difficult to differentiate the horses. There are 25 horses in the Mexico racetrack. But there can be only five horses at a time on the track. What will the least number of races that can be conducted to find out the three fastest horses?

How do you go from 98 to 720 using just one letter?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

Be active and find the killer in the picture Riddle below.

There is something which is always coming but never arrives?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.