Question words

Question words are also called wh questions because they include the letters 'W' and 'H'.

Question words	Meaning	Examples
who	person	Who's that? That's Nancy.
where	place	Where do you live? In Boston
why	reason	Why do you sleep early? Because I've got to get up early
when	time	When do you go to work? At 7:00
how	manner	How do you go? By car
what	object, idea or action	What do you do? I am an engineer
which	choice	Which one do you prefer? The red one.
whose	possession	Whose is this book? It's Alan's.
whom	object of the verb	Whom did you meet? I met the manager.
what kind	description	What kind of music do you like? I like quiet songs
what time	time	What time did you come home?
how many	quantity (countable)	How many students are there? There are twenty.
how much	amount, price (uncountable)	How much time have we got? Ten minutes
how long	duration, length	How long did you stay in that hotel? For two weeks.
how often	frequency	How often do you go to the gym? Twice a week.
how far	distance	How far is your school? It's one mile far.
how old	age	How old are you? I'm 16.
how come	reason	How come I didn't see you at the party?

Adapted from: http://www.myenglishpages.com/site_php_files/grammar-lesson-wh-questions.php

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