Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

Find the next number in the sequence

5 12 24 36 ?

Can you place three balls such that the equation shown in the picture holds true?

This is a picture puzzle. You have to guess the name of the movie that can be related to the picture.

Identify the 10 differences between the two given pictures.

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

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?

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

Look at me. I can bring a smile to your face, A tear to your eye, Or even a thought to your mind. But, I can't be seen. What am I?