Riddles and Brain Teasers

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?

Show the answer »

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

Three Two Three Sequence

What number belongs at the beginning of this sequence?

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

Show the answer »

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.

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.

Posted in Brain Teasers

Tagged with sequence

Two Tons

If you had a ton of feathers and a ton of stones which would be heavier?

Show the answer »

Neither. A ton is a ton, no matter what it’s made up of, and they both weigh a ton.

Posted in Brain Teasers

I Am A Word Of Meanings Three

I am a word of meanings three.
Three ways of spelling me there be.
The first is an odour, a smell if you will.
The second some money, but not in a bill.
The third is past tense, a method of passing things on or around.

Can you tell me now, what these words are, that have the same sound?

Show the answer »

Scent, cent, sent.

Posted in Riddles

I Build Up Castles

I build up castles.
I tear down mountains.
I make some men blind,
I help others to see.
What am I?

Show the answer »

Sand.

Posted in Riddles

Ripped From My Mother’s Womb

Ripped from my mother’s womb,
Beaten and burned,
I become a blood thirsty killer.
What am I?

Show the answer »

Iron ore.

Posted in Riddles

One Sunday to Seven Saturday

1. Sunday
2. Monday
3. Tuesday
4. Wednesday
5. Thursday
6. Friday
7. Saturday

What phrase does this represent?

Show the answer »

Days are numbered. Commonly used to say someone or something is going to end soon.

Posted in Brain Teasers

Tagged with rebus

Right Behind You Creeps on the Ground

It’s right behind you,
And creeps on the ground,
It follows you home,
But does not make a sound.
Careful when you turn around.

What is it?

Show the answer »

Your shadow.

Posted in Riddles

Has Wings But Cannot Fly

What has wings but can not fly.
Is enclosed, but can outside also lie.
Can open itself up or close itself away.
Is the place of kings and queens,
And doggerel of every means.
What is it upon which I stand,
Which can lead us to different lands?

Show the answer »

A stage.

Posted in Riddles