A One Letter Change

At my start I last a mere eleven days,
But change one letter and I’m over 31 years.

What am I?

One million seconds (about 11 1/2 days).

Change the “m” to a “b” to get one billion seconds (about 31.7 years).

It’s rather surprising that a million seconds and a billion seconds differ by such a large duration.

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You’ll Never See It Again

What day will you never see again?

Yesterday.

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Quick Mental Math

Solve this math problem in your head. Divide 30 by a half, then add 10.

70. It’s not 25 because dividing by a half is the same as multiplying by 2.

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Employ Rebus

What does this represent?

EMPLOY_ _ _ T

Men out of work.

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After the Tenth One

After the tenth one it didn’t matter that he came from an ethnic minority. Who was it?

Moses from the Bible. The Pharaoh wouldn’t release the ill-treated Israelites (an ethnic minority) from slavery until being visited by ten plagues.

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First is Twice in Apple

My first is twice in apple but not once in tart.
My second is in liver but not in heart.
My third is in giant and also in ghost.
Whole I’m best, when I am roast.
What am I?

You are a pig.

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Longest AIOTS word

What is the longest word you can find using only the letters AIOTS (each letter can be used any number of times)?

Tattooists, which has 10 letters.

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Twice the Sum of Its Digits

What number is twice the sum of it’s digits?

18.

1 + 8 = 9
2 × 9 = 18

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Memory I Have But I Have No Mind

Mouth-less but I will tell you a name that is not mine,
I will show you the years I have seen but I have no eyes,
Memory I have but I have no mind.

What am I?

A gravestone. The stone bears the name of the deceased and the memories and recollections of their life are represented by the grave site.

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Up and Down and Round About

I’m up and down and round about,
yet all the world can’t find me out.
Though thousands have employed their leisure,
they never yet could find my measure.
I’m found in almost every garden,
In a compass or a farden.
There’s neither chariot coach nor mill
may move one inch except I will.

What am I?

A circle.

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