Examples
Numbers	Strings	Booleans
123	"hello"	true
0	"I like bananas"	false
-73.2	"I'm hungry"
0.017	'watermelon'
90000	":)"

Booleans can only be true or false -- nothing else.

They may seem a little odd, but they're particularly useful in if statements and while loops.

In fact, we frequently end up with a boolean from comparing a couple of non-booleans. Consider the following code fragement:

The 73 and 100 are obviously numbers, but after we compare them using the less-than operator, what you end up with is a true/false result. It can't be anything else.