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...
What’s the Word?

What’s the Word?

This month we come back to a challenge that favors the more “verbally-inclined.” Some of the below are pretty easy and some are hard…see how many you can get: Each phrase below consists of a number and the first initials of words. Supply the missing words to complete...
Interest Rate

Interest Rate

In this month’s “brain teaser,” we present an official GMAT question. While thinking about this question, it’s critical to remember/understand that the GMAT does not allow a calculator on the Quantitative Section, so this question must be able to be solved without...
Gallon Containers

Gallon Containers

This month’s brain teaser is not so bad! Yes, it requires thought (reasoning!), but it is doable. Give it a try! You have a three gallon and a five gallon measuring device. You can fill the containers with water as many times as you like or pour water from...
1000 Lockers

1000 Lockers

There are 1000 lockers in a high school with 1000 students. The problem begins with the first student opening all 1000 lockers; next the second student closes lockers 2,4,6,8,10 and so on to locker 1000; the third student changes the state (opens lockers that are...