Birthdays in October

Birthdays in October

This month, for the first time, we are using an official question from the new version of the GMAT as our monthly “brain teaser”. As anyone who knows the GMAT will be able to tell, it’s indistinguishable from questions that appeared on the “Classic GMAT,” but if you...
A Lot of Letters

A Lot of Letters

My teacher posed the below question to our class on the last day of 5th grade. I remember puzzling over it and needing my father to help me solve it. Don’t cheat. Give yourself a chance. You can do this! What word has 1 n, 1 p, 2 l’s, 4 e’s, and 5 s’s? Answer:...
What Color is Your Hat?

What Color is Your Hat?

Three men, who are not wearing glasses, are placed in a room without mirrors. The men are told to close their eyes and then a hat is placed on each of their heads. The hat is either red or green in color. Once the hats are in place they are told to open their eyes....
Giving Away Money

Giving Away Money

This month is the first time we are introducing an official GRE question as our monthly brain teaser. The below question is yet another example of how reasoning often trumps knowledge on standardized tests and how the questions can sometimes resemble brain teasers in...
Drive Time

Drive Time

This month’s brainteaser is very conceptual and therefore does NOT require much time. Give it a try! You leave Atlanta at 8am on Sunday morning and arrive in Detroit at 8pm that same day. You take breaks on the 12 hour journey and you change speeds throughout the...