Five Three Two

What is the answer to the last equation?

5 3 2 = 151012
9 2 4 = 183662
8 6 3 = 482466
5 4 5 = 202504
7 2 5 = ?

10000 × (x × y) + 100 × (x × z) + transpose_digits(x × y + y × z)

transpose_digits() just swaps the digits

Posted in Brain Teasers

If I Didn’t Exist, You Wouldn’t Either

I’m a six-letter word. If I did not exist, you wouldn’t either. With my first letter omitted I’m an alternative. The last three letters are feminine. The first four letters make an insect.

Who am I?

Mother

other = an alternative
her = feminine
moth = an insect

Posted in Riddles

How Many Mangoes?

From a basket of mangoes when counted in twos there was one extra,
counted in threes there were two extra,
counted in fours there were three extra,
counted in fives there were four extra,
counted in sixes there were five extra,
but counted in sevens there were no extras.

At least how many mangoes were there in the basket?

119. The number has to be evenly divisible by seven for there to be no extras when counting in sevens, and it has to be odd in order for there to be one extra when counting by twos. It also can’t be evenly divisible by three through six. 119 is the first odd multiple of 7 that satisfies the requirements.

Posted in Brain Teasers

An Iron Horse With A Flaxen Tail

An iron horse with a flaxen tail.
The faster the horse runs,
The shorter his tail becomes.

What is it?

A needle and thread.

Posted in Riddles

Only Hides in the Unwound

What can be seen but never found that only hides in the unwound?

Relaxation. You can see when someone is relaxing, but no one can remain completely relaxed forever. You can relax more easily as you learn to unwind.

Posted in Riddles

Who May Enter?

A green glass door admits only certain objects. Apples and balls are allowed, but pears and bats aren’t. What determines whether an item can enter?

All words with a repeated letter are allowed. Green glass door, apple and ball.

Posted in Brain Teasers

A Descending Nudge

A descending nudge,
Or a marvelous jibe,
An abode on excursion,
And a bashing immersion,
We all live in this tribe.

What am I?

Sports. A descending nudge is a touchdown (nudge = touch, descending = down), a marvelous jibe is a grand slam, an abode on excursion is a home run and a bashing immersion is a slam dunk. All of these phrases are found in sports, more specifically American football, baseball and basketball.

Posted in Riddles

Swallow

You can swallow me, but I can swallow you. What am I?

Water.

Posted in Riddles
Tagged with

I Always Tell the Truth

You see me quite often,
But don’t really care.
If you pass by me,
You’ll often stop and stare.

I can’t speak or see,
But don’t think me uncouth,
Because no matter what,
I always tell the truth.

What am I?

A mirror.

Posted in Riddles
Tagged with

Ghoti Pronunciation

How do you pronounce Ghoti?

Fish. The gh is pronounced as in tough, the o as in women and the ti as in nation. Ghoti is a constructed word to illustrate irregularities in English spelling.

Posted in Brain Teasers