- Usually not a prime number except two, and is not odd.
- An even number, such as two, can always be divisible and stays a composite number. The pattern of all numbers is odd, even, odd, even, etc. So every other number is even. If a number ends in an even number (2, 4, 6, 8 and technically 0) that number is automatically even.
- Because when you go on a date, you go with another person and there's two of you. And if you go on a double date, there's four of you. But if there is a third wheel because their date didn't show up; that's just awkward and odd ... no pun intended.