Of course, adding seven to five makes twelve and not thirteen.

11 you put another 1 next to 1 becomes 11

number of letters

Feather.

The letter 'a.'

One. Only one person drives a car.

5, because the 4 of the men’s legs and the remaining 1 leg on the couch.

Correct, the word 'what' has 4 letters in it, 'yet' has three, 'sometimes' has 9, 'then' has 4, 'rarely' has 6, and 'never' has 5.

13

A penny

888+88+8+8+8=1000

64. The space that comes after the 64th spoke, would be just before the first spoke.