What is black when you buy it, red when you use it, and gray when you throw it away?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

The two towns are exactly 100 km apart. John leaves City A driving at 30 km/hr and Jacob leaves City B half an hour later driving at 60 km/hr. Who will be closer to City A when they meet?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

I look at you, you look at me, I raise my right, you raise your left. What am I?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

In the given picture, in how many ways can you read the word "Tiger"?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.