THINK
Solve this in your head (no writing it down!). Take 1,000 and add 40 to it. Add another 1,000. Now add 30. Add another 1,000. Now add 20. Add another 1,000. Now add 10. What is the total?
4100
A farmer had 17 sheep. All but 9 of them ran away. How many sheep does she have left?
9
Use the numbers 2, 3, 4, and 5 and the symbols + and = to make a true math equation.
2 + 5 = 3 + 4
Which weighs more: 6000g of feathers or 6 Kg of solid gold?
Both are same
Multiply this number with any other number and you will get the same answer every time. What is the number?
0
A boy is 2 years old. His brother is half as old as him. When the first boy is 100, how old will his brother be?
99
If 3 cats can catch 3 bunnies in 3 minutes, how long will it take 100 cats to catch 100 bunnies?
3 minutes
You planted sunflower seeds in your garden. Every day, the number of flowers doubles. If it takes 52 days for the flowers to fill the garden, how many days would it take for them to fill half the garden?
51
If there are 6 oranges in a basket, and you take out 4, how many oranges do you have?
4 as YOU took out 4
When does 9 + 5 = 2?
When you’re telling time. 9:00 + 5 hours = 2:00.
Mr. Lee has 4 daughters. Each of his daughters has 1 brother. How many children does Mr. Lee have?
5
You’re planning to spend your birthday money taking some friends to the movies. Is it cheaper to take 1 friend to the movies twice, or 2 friends to the movies at the same time?
Take 2 friends at the same time, so you’ll only buy 3 tickets total. If you take 1 friend twice, you’ll need to buy yourself a ticket each time, for a total of 4 tickets.
Two mothers and 2 daughters each had 1 egg for breakfast, but they only ate 3 eggs all together. How can this be?
There were only 3 people—a grandmother, her daughter, and her granddaughter.
Two years ago, I was three times as old as my brother was. In three years, I will be twice as old as my brother. How old is each of us now?
The older brother is 17, and the younger brother is 7.
Jake bought a pair of shoes and a shirt, which cost a total of Rs.150. The shoes cost Rs. 100 more than the shirt. How much was each item?
The shoes cost Rs.125, the shirt Rs.25
If you buy a rooster for the purpose of laying eggs and you expect to get three eggs each day for breakfast, how many eggs will you have after three weeks?
ZERO as roosters don't lay eggs
There are 100 houses in the neighborhood where Alex and Dev live. Alex’s house number is the reverse of Dev’s house number. The difference between their house numbers ends with 2. What are their house numbers?
19 and 91
How can you use eight 8's to get a sum of 1000?
888+88+8+8+8
What single digit appears most frequently between and including the numbers 1 and 1,000?
1
A + B + C = D, and A x B x C = D. What numbers make these two equations true?
A = 1, B = 2, C = 3, and D = 6