Riddles
What are three different whole numbers whose sum and product are the same? (a+b+c=a*b*c)
2
3/5+5/12?
61/60
In a bag of M&M’s, there are 7 brown, 4 orange, 5 blue, and 6 yellow M&M’s. What is the probability that you pull out a blue or yellow M&M?
50%
Who invented math?
Ancient Greeks
"What's 9+10?"
"21"
From the letters 1-1000, how often does the letter "a" appear?
Once
3n+2=17. Solve for n.
n=5
When Lisa was 6, her sister Lucy was half her age. If Lisa is 40 years old today, how old is Lucy?
37
00
1
"What's funnier than 24?"
"25"
21 goats eats as much as 15 cows. How many goats eats as much as 35 cows?
49
If f(x)=x/2, then what is the value of f(x2)/(f(x))2?
2x
If the length of the side of a square changes by a factor of 3, by what factor does the area change?
9
1/100th of a second
"How many stars are on the American flag?"
47
Peter buys SuperGrass from his nearest shop.What SuperGrass does is, everyday a patch of it doubles in size. Peter calculated that 1 patch of SuperGrass will need ten days to cover his garden. To speed up the process, Peter buys two patches of SuperGrass. How many days will it take for the SuperGrass to cover his garden?
9
What is 4x3(3x+1)+5x2(2x2+5x) in simplest form?
22x4+293
What is the least number of children in a family if each child has at least one brother and at least one sister?
4
What are the first 9 digits of pi?
3.14159265
"The Answer To Life, The Universe, And Everything"?
"42"
What is the value of the following product: (x-a)(x-b)(x-c)(x-d)...(x-y)(x-z)? There are in all 26 sets of parenthenses, and a, b ... z can be any numbers (real or complex)
0
What is the derivative of 3x4+x3/2?
12x3+(3√x)/2
A cleric must number the pages of a manuscript from 1 to 100. How many times will he inscribe the figure 9?
20 times
What is a number with 100 zeros called?
Googol
"Limit of ln(1-x)-sin (x)/1-cos2x?"
"The limit does not exist."