Two Fuses

You have a lighter and two fuses that take exactly one hour to burn, but they don’t burn at a steady rate. For example, one fuse could take 59 minutes to burn the first inch and then burn the rest of the fuse in the last minute.

How would you use these two fuses to measure 45 minutes?

Light the first fuse on both ends and the second fuse at only one end. When the first fuse burns out you know 30 minutes have passed. Light the other end of the second fuse and when it burns out, 45 minutes have passed.

Posted in Brain Teasers

I Am Big And Mighty

I am big and mighty, and scared of sharp objects.
I feed everyone and watch people go by.
I have my feet stuck and hate talking with my big mouth.

What am I?

A tree.

Posted in Riddles

Hurt Without Moving

We hurt without moving.
And poison without touching.

We bear truth and lies,
But are not judged by size.

What are we?

Words.

Posted in Riddles
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A Hundred Legs But Can’t Stand

I have a hundred legs, but cannot stand.
I have a long neck, but no head.
I cannot see, yet I help keep your house neat and tidy.

A broom.

Posted in Riddles

Three Pills From the Doctor

Your doctor gives you three pills and tells you to take one every half hour. How much time will have passed by the time you’ve taken all three pills?

One hour. You take the first pill, then wait a half hour and take the second pill, then at the hour mark you take the third and last pill.

Posted in Brain Teasers

Black, Red and White

What’s black when you get it, red when you use it, and white when you’re all through with it?

Charcoal.

Posted in Riddles

Twice Is 99 More Than Half

What number satisfies this requirement? Twice the number is 99 more than half of the number.

66.

2 × 66 = 132 and 132 – 66 / 2 = 99.

Posted in Brain Teasers

Three Two Three Sequence

What number belongs at the beginning of this sequence?

?, 3, 2, 3, 9, 2, 4, 8, 4, 3, 7, 6

3 ½.

If you break up the numbers into groups of 4, a,b,c,d, then 2 × |a – d| = |b – c|.

9 2 4 8 → 2 × |9 – 8| = |2 – 4|, or 2 × 1 = 2
4 3 7 6 → 2 × |4 – 6| = |3 – 7|, or 2 × 2 = 4, so
n 3 2 3 → 2 × |3 ½ – 3| = |3 – 2|, or 2 × ½ = 1;

I’m not sure this is the correct solution, but it’s the best I’ve found so far. Email me if you know of a better one.

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Lots of Eggs

The number of eggs in a basket doubles every minute. If it’s full of eggs in an hour, when was the basket half full?

At 59 minutes. The eggs double every minute, so half full would be a minute before it was full.

Posted in Brain Teasers

Rhyming Anagrams

There are four pairs of words below. Rearrange one of the words in the pair to form a word that rhymes with the other word. For example, if you had the following pair of words:

FRINGE LINGER

You would rearrange FRINGE into FINGER, which rhymes with LINGER. You can rearrange the letters of either word.

1. MOPIER PERIOD
2. GHOULS SCRUFF
3. JAILED LEVIED
4. WEIGHT ARTIST

1. DOPIER
2. SLOUGH
3. VEILED
4. STRAIT

Posted in Brain Teasers