Going Down to the River

A zebra was going to the river. On the way the zebra encountered five giraffes. Each giraffe had five monkeys on their neck. How many animals were going to the river?

Just one – the zebra. The other 30 animals (5 giraffes and 25 monkeys) were going the other way.

Posted in Brain Teasers

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

I Am What Remains

I am what remains of what
was once a living whole,
dug in deep, protruding, though,
and unobtainable.

A stump.

By Sef Daystrom

Posted in Riddles
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What Are The Next Three Numbers in the Series?

What are the next three numbers in this series?

4
6
12
18
30
42
60
72
102
108
?
?
?

Each number is surrounded by a prime number.

4 – 3 and 5 are prime
6 – 5 and 7 are prime
etc.

The next three numbers after 108 that have primes before and after them are:

138, 150 and 180.

Posted in Brain Teasers

Turn Nine Into Six

Here is the Roman numeral for nine: IX

By adding only one line or symbol, how can you turn it into six?

SIX.

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The Thinner It Grows

You use me from your head to your toes.
The more you use the thinner it grows.
For years I was not often used,
Not using me now is not excused.

Soap.

Posted in Riddles

Hold In Your Left Hand

What can you hold in your left hand and not in your right?

Your right elbow. You can try it yourself if you’re not convinced, but unless you have a broken arm or an incredibly flexible ulna, you won’t reach it.

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Letters, Letters, What Comes Next?

What letter comes next letter in this series?

A E F H I ___

K. It’s the series of capital letters without curves in alphabetical order.

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Graphical Rebus Four

What does this rebus represent?

Rebus

I Dreamed a Dream

Posted in Riddles
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The Lost City of Chenarz

You want to go on an adventure to the remote city of Chenarz, but it’s 120 miles off the Pacific coast. To conserve money, take the smallest number of people as possible. Each person can carry enough food for five days but you can only travel 30 miles a day. You want to reach Chenarz, stay overnight, and return the next day. How many people, including yourself, must you take to reach the city?

Note: Please don’t let anyone starve.

You will need three other members in your party to accomplish your mission for a total of four people.

Four people × 5 day’s rations = 20 day’s rations.

Day 1: 5 rations – Four day’s rations are used. One person goes back using one day’s ration for the return trip.
Day 2: 5 rations – Remaining three members use three day’s rations. One goes back using two day’s rations for the return trip.
Day 3: 5 rations – Remaining two use two day’s rations. One goes back using three day’s rations for the return trip.
Day 4: 1 ration – You use one day’s rations. You reach the city and stay the night.
Day 5: 4 rations – You return to the coast using up four day’s rations.

Posted in Brain Teasers