The Dizzying Spirals

Brain Teasers

This month we have yet another great Martin Gardner puzzle. Full disclosure, doing this one made me a little dizzy! But if you do it in a “systematic” way, it’s possible to do it without getting nauseous! One of these spirals is formed with a single piece of rope that...

Who Gets Picked? Claire vs. Max

Brain Teasers

This month’s “brain teaser” is actually a Data Sufficiency question, which is a question type that appears on the Data Insights section of the GMAT. These questions tend to be tricky and reward reasoning more than pure math ability! The answer choices are below the...

The Mislabeled Crates

Brain Teasers

You are in a storage room with 3 wooden crates. One is labeled APPLES, one is labeled ORANGES, and one is labeled APPLES & ORANGES. You are told that every single label is wrong. Inside each crate is either only apples, only oranges, or a mix of apples and...

Funny Fold

Brain Teasers

This month we have a great “spatial reasoning” puzzle from the prodigious writer of brain teasers, Martin Gardner. This one is an absolute gem! Enjoy! The below image depicts a large capital letter that has been cut from a piece of paper and given a single fold. It is...

Anchor in the Lake

Brain Teasers

This month we have more of a question than a brain teaser. But, it definitely has a brain teaser-ish feel to it! Enjoy! Suppose you are on a boat in the middle of a lake. There is an extremely heavy lead anchor in the boat. If you were to throw the anchor into the...