Q: What's your height?

A: I'm 5 feet, 4 inches tall.

I ask a question

You give an answer.

Q: How tall are you?

A: I'm 5 feet, 11 inches tall.

or...

A: I'm 5' 11"

You ask a question.

I give an answer.

Q: What's his height?

A: He's six one. (It's possible to eliminate the use of "feet" or "inches" completely.

Q: How tall is she?

A: She doesn't know. She has to measure herself.

Q: How tall is that apartment building?

A: It's three stories tall.

Q: How tall are these stones?

A: They're about 15 feet high.

Q: How tall are those skyscrapers?

A: They're over 40 stories tall.

Q: How much do I weigh?

A: I don't know. Why don't you weigh yourself?

I ask a question.

You give an answer.

Q: How much do you weigh?

A: I weigh 191 pounds.

You ask a question.

I give an answer.

Q: What does he weigh?

A: He weighs about 175 pounds.

Q: How much does she weigh?

A: She doesn't know. She has to weigh herself.

Q: How heavy is this?

A: It's about 10 pounds.

Q: How heavy are these stones?

A: They're very heavy.

Q: How much do these apples weigh?

A: They're almost four pounds.