HARD MATH RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

Trending Tags

Feel free to use content on this page for your website or blog, we only ask that you reference content back to us. Use the following code to link this page:
Terms · Privacy · Contact
Riddles and Answers © 2024

A Hard Spot To Get Out Of

Hint:
Trouble
Did you answer this riddle correctly?
YES  NO  

The Constipated Mathematician

Hint:
He worked it out with a pencil
Did you answer this riddle correctly?
YES  NO  

Mathematicians And Ice Cream Riddle

Hint:
In a cone
Did you answer this riddle correctly?
YES  NO  

Hard To Find Riddle

Hint:
A friend
Did you answer this riddle correctly?
YES  NO  

A Hard Key Riddle

Hint:
A donkey.
Did you answer this riddle correctly?
YES  NO  

Hard And Hairy Riddle

Hint:
A coconut.
Did you answer this riddle correctly?
YES  NO  

I Go In Hard I Come Out Soft

Hint:
Bubblegum
Did you answer this riddle correctly?
YES  NO  

As Hard As Stone Riddle

Hint:
Ice
Did you answer this riddle correctly?
YES  NO  

5+5+5=550 Riddle

Hint:
Add a line to make the first + a 4 545+5=550
Did you answer this riddle correctly?
YES  NO  

Missing Dollar Riddle

Hint: Make a list of all of the people involved and how much money they ended up with/spent.
The $9 paid by each guest accounts for the $2 that went to the bellhop. So rather than adding $27 to the $2 kept by the bellhop, the $27 accounts for the bellhops money. The $27 plus the $3 kept by the guests does add up to $30.
Did you answer this riddle correctly?
YES  NO  

Prince Age Riddle

Hint:
Current Future Past

Princess x 2z (x+y)/2
Prince y x z

I then created three equations, since the difference in their age will always be the same.

d = the difference in ages

x y = d
2z x = d
x/2 + y/2 z = d

I then created a matrix and solved it using row reduction.

x y z

1 -1 0 d
-1 0 2 d
.5 .5 -1 d

It reduced to:

x y z

1 0 0 4d
0 1 0 3d
0 0 1 5d/2

This means that you can pick any difference you want (an even one presumably because you want integer ages).

Princess age: 4d
Prince age: 3d

Ages that work

Princess:
4
8
16
24
32
40
48
56
64
72
80

Prince:
3
6
12
18
24
30
36
42
48
54
60
Did you answer this riddle correctly?
YES  NO  

The Weight Of A Melon Riddle

Hint: We are to determine X the total mass of melon after the drying. The Dry weight, DW is 1lb both before and after the drying. The New Water weight, WNW is clearly X - DW or X - 1
50 lbs.
Did you answer this riddle correctly?
YES  NO  

Hard And Soft Riddle

Hint:
A coconut
Did you answer this riddle correctly?
YES  NO  

Speaking With A Hard Tongue

Hint:
A bell
Did you answer this riddle correctly?
YES  NO  

Age Of Three Daughters Riddles

Hint:
3, 3, and 8. The only groups of 3 factors of 72 to have non-unique sums are 2 6 6 and 3 3 8 (with a sum of 14). The rest have unique sums:

2 + 2 + 18 = 22
2 + 3 + 12 = 18
2 + 4 + 9 = 15
3 + 4 + 6 = 13

The house number alone would have identified any of these groups. Since more information was required, we know the sum left the answer unknown. The presence of a single oldest child eliminates 2 6 6, leaving 3 3 8 as the only possible answer.
Did you answer this riddle correctly?
YES  NO  

Add Your Riddle Here

Have some tricky riddles of your own? Leave them below for our users to try and solve.