We have a brick of regular size. It weighs 4kg. How much do you think a similar brick, four times smaller, but made of the same material weigh?

When purchased together, a pair of binoculars and the case cost $100. If the binoculars cost $90 more than the case, how much does the case cost?

Kelsey has flipped a penny 17 times in a row, and every time it has landed on heads. What are the chances that the next throw will land on heads?

The number of bacteria in a large sealed jar doubles every minute. The bacteria will take an hour to fill the jar. When will the jar be half full?

All the girls of Mary’s class are standing in a row. Mary is the 11th girl from both ends. How many girls are studying in Mary’s class?

A farmer has 30 animals consisting of chickens and cows. The animals have 74 legs in total. Find out the number of chickens and cows the farmer has.

If the price off a dress was cut by 20% for a sale, by what percentage off the sale price must it be increased by to resell it at the original price?

A man picks up cigarette butts from the ground and can make a cigarette with 4 butts. If he finds 16 cigarette butts, how many cigarettes can he make?

If it were three hours later than it is now, it would be twice as long until midnight as it would be if it were four hours later. What time is it now?

John bought a used car for $600 and sold it to Mary for $800. He later bought it back for $1000 and resold it for $1200. How much profit did John make?

With the numbers 123456789, make them add up to 100. They must stay in the same order. You can use addition, subtraction, multiplication, and division.

A boy has as many sisters as brothers, but each sister has only half as many sisters as brothers. How many brothers and sisters are there in the family?

I have 25 coins that are made up of dimes (10¢), nickels (5¢) and pennies (1¢). They add up to a dollar. How many coins of each do I have?

A patient is given five different tablets to take at night at an interval of 15 minutes. How long will it take the patient to consume all the five tablets?

If you have 30 white socks, 22 black socks and 14 blue socks scattered across the floor in the dark, how many would you have to grab to get a matching pair?