What
When
Where
Who
How or Which
100

time

What time is it? 

What time is the game?

100
birthday

When is your birthday?

100

dog

Where is the dog?

100

friend

Who is your friend?
100

tall

How tall are you?

200

city

What city do you live in?

200

show

When is the show?

200

house

Where is your house?

200

play the piano

Who can play the piano?

200

bikes

Which bikes are yours?

300

dinner

What did you eat for dinner?

What do you eat for dinner?

300
school

When does school start?

300

read

Where do you read?

300

dance, likes

Who likes to dance?

300

toys

How many toys are there?

400

cafe

What cafe is this? 

400

sleep

When do you go to sleep?

400

sing, dance

Where do you sing and dance?

400

smartest

Who is the smartest person in the room?

400

old, penguins

Which penguins are old?

500

size

What size are your shoes?

What size is this drink?

500

shopping

When did you go shopping?

500

mountain, tallest

Where is the tallest mountain in the world?

500

jump

Who knows how to jump?

500

much, food

How much food did you buy?