A Blazing Invention
Hint:
Innovating Golf
My invention can be found on a golf course. I come in many colors and help golfers tee off! What did I invent?
Hint:
Lawn Mower Riddle
Hint:
An Unpopular Invention
My invention is not very popular with people who visit the doctor. It is pointy and sometimes makes people cry. Who am I and what did I invent?
Hint:
Keeping You Cool
My name is Frederick McKinley Jones, and I invented the machine that keeps you nice and cool on hot summer days. What did I invent?
Hint:
The Mechanically Inclined Inventor
Hint:
Going To High Places
My invention makes it easier for people to get to high places without climbing stairs. What did I invent?
Hint:
African American Poet Riddle
Hint:
Missionary Among Slaves
I lived from 1797 to 1883.
I was a missionary among slaves in New York.
I used my talent of speaker for the slavery movement.
My name was changed by a Quaker family to Van Wagener.
I was a missionary among slaves in New York.
I used my talent of speaker for the slavery movement.
My name was changed by a Quaker family to Van Wagener.
Hint:
Father Of The Peanut
Some call me the father of the peanut, for I discovered 300 useful things made of the peanut. Who am I?
Hint:
Touch Tone Pioneer
This African American pioneer fostered the invention of touch tone phones and the portable fax. Who is it?
Hint:
America's First Clock Riddle
Hint:
Railroad To Freedom
Hint:
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
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