Weighty Wine

How much does a bottle of wine weigh if it is 1 kilogram plus half its own weight?

2 kg.

If we let half of the bottle’s weight be “n”, then we get the following equation: n/2 + 1kg = n (the bottle’s weight).

Solve for n:
n/2 + 1 = n
1 = n/2
2 = n

Posted in Brain Teasers

Five Games of Checkers

Two children were playing checkers and each played five games. Both children won the same number of games yet there were no ties. How is this possible?

They weren’t playing each other.

Posted in Brain Teasers

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

B C D E I K O X Series

What other letter fits in the following series

B C D E I K O X ?

The letter H. It completes the list of letters that are vertically symmetrical. In other words, you can fold the top half of the letter over the bottom half and everything lines up.

Posted in Riddles

Waiting For a Man To Die

I cannot be other than what I am
Until the man who made me dies
Power and glory will fall to me finally
Only when he last closes his eyes.

A prince.

Posted in Riddles

Part Of The Bird

The part of the bird
that is not in the sky,
which can swim in the ocean
and always stay dry.

What is it?

The bird’s shadow.

Posted in Riddles

Not Many People Understand Me

My first three letters stores things. Not many people understand me. What am I?

Binary. Bin is a storage container and binary just 1s and 0s.

Posted in Riddles
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A Seed of Three Letters

I am a seed, three letters in the name,
Take away two and I sound quite the same.

What am I?

Pea.

Posted in Riddles

Peppino’s Hat

Peppino bought a new hat and Tito asked what day he bought it. Peppino replied, “If yesterday was tomorrow, today would be Tuesday.” On what day did Peppino buy his hat?

Thursday. Yesterday (from Thursday) is Wednesday, which is tomorrow with respect to Tuesday.

Posted in Brain Teasers

Secure Spy Transfer

You are a spy and need to send an item to a contact in another country without letting anyone else have access to it. All unlocked items will be opened in transit. How can you send this item securely?

Place a lock on the item and send it to your contact. They will place their own lock on the package and return it to you. You remove your lock and send it back. When they receive it, they can unlock the package and retrieve the item.

Posted in Brain Teasers