A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

There is one four-digit whole number n, such that the last four digits of n2 are the original number n

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

Solve below popular number sequence
314 159 265 358 979 323 846 ?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

How many triangles are there in the picture below?

What number divided by 4 is the same as that number minus 4?

In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

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