How Did You Know? [Day 3]

If you're just joining us, every day this week, I'm presenting a specific challenge. Your job: come up with the answers and hold onto them! Why? Because on Friday, you'll need them to solve a short puzzle. The first person to email in the correct answers and successfully show how you arrived at them (thus the title: How Did You Know?) wins a choice of any t-shirt or book from our store.

As with our previous challenges, I definitely encourage you to work in teams. Email your friends, send around each daily challenge, conspire, work together, whatever it takes to make sure you're armed with the right answers going into Friday's puzzle.

In case you missed Day 1 of this feature, check out Monday's challenge here. Day 2 is right over here.

Today, we're playing "One of These Things is Not Like the Others," if you remember the Sesame Street game. Each of the three following videos and two article headlines have one not-so-obvious thing in common. However, all but one have TWO not-so-obvious things in common. Your job is to figure out which is not like the others and why.

Let's start with some Sesame Street then. Click through to each subsequent page for the others... though not necessarily "the others."

If you're still stuck, check out the last page for a hint.

Hint: They say a picture is worth a thousand words. However, for this challenge, a word is worth a lot more than a picture!