Wh- Questions can be used to ask for more information:
Whatdid you do over the weekend?

Where did you go for Spring Break?

How was your trip?

When did you get back?

What kind of things did you see?

Who did you go with?

How many
people were there?

Whose car did you drive?

When asking for details about a particular item you are considering buying, you can say
Could you give me some information about this computer?
Can you give me more details about that CD player?
Could you tell me about this bookcase?
What can you tell me about these blenders?