It Has No Eye

If a man made it, it has an eye.
If a tree made it, it has no eyes.

What is it?

A needle.

By Sef Daystrom

Posted in Riddles

Scrambled Animals

Using each of the letters in this phrase only once, rearrange the letters to make the names of exactly three different animals.

Tall elephant or ape man.

1. Panther
2. Antelope
3. Llama

Posted in Brain Teasers

Progressive Countdown

If you’re given a number, subtract 1, then 2 from the result, then 3 from that result and so on until you reach 0 or a negative number.

For example, if you’re given 15:

15 – 1 = 14
14 – 2 = 12
12 – 3 = 9
9 – 4 = 5
5 – 5 = 0

Which of these numbers will finish exactly at zero?

102 103 104 105 106

105

105 – 1 = 104
104 – 2 = 102
102 – 3 = 99
99 – 4 = 95
95 – 5 = 90
90 – 6 = 84
84 – 7 = 77
77 – 8 = 69
69 – 9 = 60
60 – 10 = 50
50 – 11 = 39
39 – 12 = 27
27 – 13 = 14
14 – 14 = 0

Posted in Brain Teasers

From Plant to Star

What plant becomes the name of a star by removing the first letter, becomes a number without the last letter and becomes a bird if the first and last letters are taken away?

Ivy

VY = VY Canis Majoris, one of the largest known stars
IV = Roman Numeral 4
V = representation of a bird

Posted in Riddles

Hilda’s Age

When Randolph asked Hilda how old she was, Hilda replied that in two years she would be twice as old as she was five years ago. How old is Hilda?

Aside from the potential response that it’s rude to ask the age of a lady, the answer can be worked out mathematically.

x + 2 = 2(x – 5)
x + 2 = 2x – 10
x + 12 = 2x
12 = x
In two years she’ll be 14, which is twice her age 5 years ago (7).

Posted in Brain Teasers

I Hide But My Head Is Outside

I hide but my head is outside. What am I?

A nail.

Posted in Riddles

How Old Is The Shepherd?

There are 125 sheep and 5 dogs in a flock.

How old is the shepherd?

You can’t determine the answer.

I debated adding this riddle because it is less of a riddle and more of an illustration of how kids are (or are not) being taught to think for themselves. But after reading how kids feel the need to make up an answer without understanding why, I thought this could be a good reminder for all of us to exercise our critical thinking skills.

(via Student Voices)

Posted in Riddles

What Does a Cow Have Four Of?

What does a cow have four of, a dog has eight of and you only have two of that can be used standing up or sitting down?

Nipples or teats. Cows have four of them, dogs usually have eight and a human (assuming that’s who’s reading this) has two. Cows milk standing up, dogs often lie down and women usually sit when breastfeeding.

Posted in Riddles

Special Sequence

What is special about the following sequence of numbers?

8 5 4 9 1 7 6 10 3 2 0

The numbers are in alphabetical order.

8 = eight
5 = five
4 = four
9 = nine
1 = one
7 = seven
6 = six
10 = ten
3 = three
2 = two
0 = zero

Posted in Brain Teasers
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Picking Red Balls

A bag contains 64 balls of eight different colors. There are eight of each color (including red).
What is the smallest number you would have to pick, without looking, to be sure of selecting 3 red balls?

59. The first 56 balls could all be non-red colors. If that happened, you’d have to choose from the 8 remaining balls, all of which would be red.

Posted in Brain Teasers