When asks about 1) time 2) place
Time
When were you at home yesterday?
I was at home in the afternoon.
When? 1) At school 2) In the morning
In the morning
Where asks about 1) Time 2) Place
2) Place
Where were you yesterday?
I was at the park.
What was the weather like yesterday?
It was snowy
Who asks about 1) weather 2) people
people
Who were you with?
I was with my grandma.