Random
Wordsmith
Riddle Me This
Just the Numbers
Exponentially Difficult
100

if 100cm = 1m, then 12m is ___cm.

What is 1200?

100

A farmer who raises chicken has boxes which holds 6 eggs each, and boxes which holds 12 eggs each. what is the minimum number of boxes he needs to store 66 eggs?

What is 6?

100

How many hours in a week?

What is 168?

100

The next term in the arithmetic sequence 2005, 2009, 2013, 2017...

2021

100

7+ 72

(7x7) + (7x7) = 98

200

Each of the five concentric circles of a bull's eye is worth a different odd number below 50. What is the greatest possible sum of the five numbers?

What is 225?

200

Each student in the class drew his/her pet. Two students each drew a dog and a fish. Three students drew each a cat and a dog. The other students drew one animal each. There were pictures of 8 cats, 6 dogs and 3 fish. How many students in the class? 

What is 12?

200

A fortnight is two weeks. How many fortnights are there in 98 days?

98 (days) / 14 (days in a fortnight) = 7 fortnights

200

_____ is the remainder when 2010 is divided by 3.

What is 0?

200

44

4 x 4 x 4 x 4 = 256

300

(sum of all digits in 2000) X (sum of all digits in 2001) is _____.

6

300

During a party, two identical cakes were divided into four equal pieces each. Then each of those pieces were further divided into 3 equal pieces. After that each person at the party got a piece, and three were left over. How many people were at the party?

What is 21?

300

The perimeter of a square is twice that of another square. If a side of the larger square is 6cm long, then the area of the smaller square is?

What is 9cm2?

300

20 − 19 + 22 − 21 + 24 − 23 + 26 − 25 + 28 − 27 + 30 − 29?

r

300

172

289

400

DLXXVI in Arabic numerals.

576

400

There are 13 coins in John's pocket, and each is a 5 cent or a 10 cent coin. Which of the following cannot be the total value of coins in John's pocket? 60, 70, 80, 115, 125 cents. 

What is 60?

400

What is the sum of the first ten odd positive composite whole numbers? Composite numbers are whole numbers greater than 2 that are not prime. Prime numbers are numbers that can only be divided by 1 and themselves. (For example: 13 is a prime number and 20 is a composite number. 

By going through the first few odd numbers, the first ten odd composite numbers are 9, 15, 21, 25, 27, 33, 35, 39, 45, and 49. The sum of those numbers is 298. 

400

What is the sum of the digits of 8 × 7 × 6 × 4 × 3 × 2 × 1?

8 × 7 × 6 × 4 × 3 × 2 × 1 = 8,064

The sum of the digits 8 + 0 + 6 + 4 is 18

400

202 + 212

841

500

A dinosaur grows 2m each week. A dragon grows 1m each day. In 4 weeks, how much more does a dragon grow than a dinosaur?

20m?

500

In a quiz show, the rules are: every participant has 10 points at the beginning, and has to answer 10 questions. For each correct answer, the participant earns one point, and for an incorrect answer, the participant loses one point. Mrs. Bindu had 14 points at the end of the quiz. How many answers did she answer correctly?

What is 7?

500

The latest movie starring superspy agent Ethan was 147 minutes long. If a showing of that movie started at 6 : 15 PM, then at what time did the showing end?

What is 8:42?

500

1144 rounded to the nearest hundred is

1100

500

8-2

1/64 (fraction)