Riddles and Brain Teasers

Two Three Four Fifteen

What is the missing number?

2 3 4 15 12
3 4 5 28 20
4 5 6 45 30
5 6 7 66 42
6 7 8 ?? 56

91. To get the number in the fourth column, you add the numbers in column 1 and 2, then multiply by the number in column 2. f(n,m) = (n + m) * m
For example, f(2,3) = (2 + 3) * 3 = 15. Thus f(6,7) = (6 + 7) * 7 = 91

Posted in Brain Teasers

Tagged with sequence

Whoever makes it, tells it not.

Whoever makes it, tells it not.
Whoever takes it, knows it not.
Whoever knows it, wants it not

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Counterfeit money or poison.

Posted in Riddles

I’m On A Horse

You’re riding a horse. To the right of you is a cliff and in front of you is an elephant moving at the same pace and you can’t overtake it. To the left of you is a hippo running at the same speed and a lion is chasing you. How do you get to safety?

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Get off the merry-go-round.

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Bed, Evil, Identical

What word can be added before or after these words to make a new word or phrase?

Bed, Evil, Identical

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Twin. Twin bed, Evil twin, Identical twin.

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A Neighborly Argument

Two of your neighbors were arguing about if the first man’s peacock laid an egg in the seconds man’s garden, who would own the egg. They asked you to solve their dilemma. What would you tell them?

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Peahens lay eggs. Peacocks are males.

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