Computation Math
Algebra
Exponents
Math Problems
Riddles
100

If six eggs cost $1.49, what is the cost of 6 dozen eggs, to the nearest dollar?

$18

100

If 2a + b = 13, what is the value of 6a + 3b?

39

100

What is the value of 13- 12- 52?

0

100

A jar contains 300 marbles.  The marbles can be divided into 3, 5, or 7 equal piles with 2 marbles left over each time.  What is the least possible number of marbles in this jar?

317

100

Figures with sides have it, but a circle doesn’t. What is it?

Angles

200

Garrett's passcode has four digits.  He knows the digits are 2, 6, 88, and 7, but he cannot recall thier proper sequence.  What is the probabillity that he will enter the correct passcode on his first try.  Express you answer as a common fraction. 

1/24

200

If w + x - 4y = 500 and w + x + 6y = 1200, what is the value of w + x?

780

200

What is 90?

1

200

Sam reads an average of 8 pages of a book in 10 minutes.  At this rate, how long will it take Sam to read the entire 192 page book? (hours)

4 hours

200

What should you do to make 81 x 9 = 801 correct?

Just turn the numbers upside down. 18 x 6 = 108.  

300

In two hours, Sarah travels 102 miles driving at a constant speed.  At this speed, how many miles will she travel in three hours?

153 miles

300

if (x + 3) - ( y+5) = 19, what is the value of (x + 5) - (y + 3)?

23

300

if 2x  x 3= 81, what is the value of x and y? 

x = 0, y = 4

300

Elliot scored 25% more points in a game than Adrian did.  If Adran scored 220 points, how many points did Elliot score?

275 points

300

I will be everything if you put me on my side. I will be nothing if you cut me in half. What am I?

 The number 8.

The explanation: If you put 8 on its side, it will become an infinity symbol ∞. If you cut it on its “waist,” it will become two zeros 0 0.

400

What is the average of the first 310 positive perfect squares?  Express your answer as a decimal to the nearest tenth. 

38.5

400

What is the value of 6 consecutive odd integers whose sum is 216?

41

400

y= 15, What is the value of y?

5

400

Two standard 6-sided dice are rolled.  What is the probabilty that the number showing on one of them is twice the number showing on the other?  Express as a fraction. 

1/6

400

What should you place between 3 and 4 to make it bigger than 3 but smaller than 4?

A decimal Point

500

The sum of 6 consecutive integers is 3.  What is thier product?

0

500

Leo has a spinner with 4 equal parts labeled S, P, I, N, which he spines 72 ties.  What is the expected number of spins where it will land on I?

18 spins

500

What is 5-3

0.008

500

If 6 clanks are in a clink and 12 clinks are in 9 clonks, how many clanks are in a clonk?

8 clanks

500

When David was eight, his little brother Alex was half his age. David is 30 now. How old is Alex?

Alex is 26