A Promise to the President

Ronald has a rare opportunity to meet the President of the United States. During his visit the president gives him a gift but tells Ronald he is never to sell it unless he sees the president again. Ronald consents, but the president dies later that year. Years later a man offers to buy the President’s gift for $1000. Ronald agrees and exchanges the gift for 20 crisp $50 bills. Did he keep his promise?

Yes. The president was Ulysses S. Grant, who died in 1885 and whose face has been on the $50 bill since 1913. He saw the president on the bills before he made the exchange.

Posted in Brain Teasers

Two Three Ten Sequence

If:
2 3 = 10
7 2 = 63
6 5 = 66
8 4 = 96
9 7 = __

What is the missing number?

f(n, m) = (n + m) × n

e.g. f(2, 3) = (2 + 3) × 2 = 10

Hence, f(9, 7) = (9 + 7) × 9 = 144

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Word Jumble

Frederick takes half of CONNIE, part of NESTA, part of NELLIE and part of AUNTIE to create something new. What does he call his new creation?

Constantine

Posted in Brain Teasers

Cat-Related Phrases

What are these words or phrases, which contain the word cat?

A dreadful event (11 letters)
A robber who climbs walls (10 letters, 2 words)
A systematic list (7 letters)

Catastrophe
Cat Burglar
Catalog

Posted in Brain Teasers

Finley’s Flaky Friends

Finley’s friends all chipped in to buy her a wedding gift. At first, ten friends agreed to contribute the same amount. Then two “friends” dropped out. The remaining eight had to add another dollar each to cover the cost of the gift. How much did the gift cost?

$40.

Let x be the amount the ten friends initially agreed to pay. We can then make the following equation:

10x = 8x + 8

Solving for x gives us $4, thus the gift cost 10 × $4, or $40.

Posted in Brain Teasers

What Letter Comes Next?

The letters in this series are ones that don’t begin something. Figure out what that something is, and what letter comes next.

B E J ?

Q. The thing they don’t begin is states in the United States of America. The final three letters in the series are X, Y and Z.

Posted in Brain Teasers

2, 3, 6

What number comes next in this series?

2 3 6 7 1 9 4 5 ___

8. The numbers are in reverse alphabetical order.

Two, three, six, seven, one, nine, four, five, eight.

Posted in Brain Teasers

Seen in the Water

I am seen in the water
If seen in the sky,
I am in the rainbow,
A jay’s feather,
And lapis lazuli.

Blue.

Posted in Riddles

A Trapped Flock of Birds

A flock of birds are trapped in a delivery truck. When would the truck weigh the most?

a) When the birds are resting on the floor
b) When they’re all flying
c) The weight remains the same

c – The weight doesn’t change since it’s a closed system.

Posted in Brain Teasers

Who Is Silent In Parliament?

Who is silent in Parliament?

The letter i, which is the only silent letter in the word Parliament.

Posted in Riddles