Prove that twice of ten is the same as twice of eleven.

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

What kind of band never plays music?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

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

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

Find the number of squares in the below-given picture.

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I