You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

Replace the question mark with the number below given a simple math problem.

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

You along with your friend are standing in front of two houses. Each of those houses inhabits a family with two children.

Your friend tells you the below two facts:
1) On your left is a family that has a boy who likes accounts but the other child loves science.
2) On the right is a family with a seven-year-old boy and a newborn baby.

You ask him, "Does either of the family have a girl?"

To this, he replies, "I am not quite sure. But can you guess that? If you are right, I will give you $500."

Which family do you think is likely to have a girl?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?