Can you find the missing piece of the Porsche?

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

Why 1729 is a magic number? Answer Logically.

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Count the number of squares in the picture below.

I am white when I am dirty, and black when I am clean. What am I?

Can you find the dog hidden in a group of pandas?

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?

Name the three-letter word that can complete the below words?

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

Which is the rope you never skip with?