A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

What came first, the chicken or the egg?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Which digit occurred maximum times between the number 1 and 1000?

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?

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

Who always enjoys poor health?

A bomb exploded in a room full of married couples and no one died. How?