Prince Age Riddle
A princess is as old as the prince will be when the princess is twice the age that the prince was when the princess's age was half the sum of their present ages.
What are their ages?
What are their ages?
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
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
Pete And Repeat
Hint:
Repeat...Pete and repeat went fishing. Pete fell of the boat. Who was left? (keeps continuing because you are saying repeat) Did you answer this riddle correctly?
YES NO
YES NO
What Belongs To You But Others Use It More Than You Do Riddle
Hint:
Opposite Sides Of The Road
Hint:
I Am Bright
Im bright but Im not clever
I burn but Im not a bonfire
I sound like Im a celebrity but Im not famous
I twinkle but Im not an eye
I can be seen at night but Im not the moon
I am a?
I burn but Im not a bonfire
I sound like Im a celebrity but Im not famous
I twinkle but Im not an eye
I can be seen at night but Im not the moon
I am a?
Hint:
Sprouting True Beauty
She's like a model, sprouts true beauty.
Sends sexual shock waves to others and withers away in the end on contests.
Her arms extends freely to reach the crowns, that's shiny and clear and helps her along in life, what is she?
Sends sexual shock waves to others and withers away in the end on contests.
Her arms extends freely to reach the crowns, that's shiny and clear and helps her along in life, what is she?
Hint:
The Emergency Room Riddle
If you get badly injured
Then to this place you will zoom
As they can give you treatment
In the emergency room
Where is this?
Then to this place you will zoom
As they can give you treatment
In the emergency room
Where is this?
Hint:
I Can Be Tuned Riddle
I can be played but I'm not a board game
I have keys but I don't have any locks
I have hammers but I don't have any nails
I have pedals but I'm not a bicycle
I can be tuned but I'm not a radio
I have keys but I don't have any locks
I have hammers but I don't have any nails
I have pedals but I'm not a bicycle
I can be tuned but I'm not a radio
Hint:
Brown Shell On The Outside
Ive a brown shell on the outside
And my shape is an oval
However, I am not an egg
From a palm trees where I fall
I am?
And my shape is an oval
However, I am not an egg
From a palm trees where I fall
I am?
Hint:
Six Strings
This can sometimes be electric
Although it is not a car
Its a musical instrument
With six strings - its a?
Although it is not a car
Its a musical instrument
With six strings - its a?
Hint:
Eight Hands Riddle
Hint:
Covered By A Curtain
This is something found throughout the house
Of that you can be very certain
Made of glass so you can see through it
But sometimes covered by a curtain
I am a?
Of that you can be very certain
Made of glass so you can see through it
But sometimes covered by a curtain
I am a?
Hint:
A Transport To People
I have blades but Im not grass
Im sometimes an Apache but Im not a Native American
I can fly but I dont have any wings
I can transport people but Im not an airplane
Im a chopper but Im not a knife
What is it?
Im sometimes an Apache but Im not a Native American
I can fly but I dont have any wings
I can transport people but Im not an airplane
Im a chopper but Im not a knife
What is it?
Hint:
Black As Night Riddle
With three eyes and a black as night, I frequently knock down ten men with a single strike! What am I?
Hint:
Clean And Dry Riddle
Hint:
Add Your Riddle Here
Have some tricky riddles of your own? Leave them below for our users to try and solve.