You can't find the bathroom.
E.g. Could you tell me where the bathroom is?
You want to go to your friend's house far away.
E.g. Could you drive me to my friend's house?
You were writing and made a mistake.
E.g. Could you lend me an eraser?
You have to carry many heavy bags.
E.g. Can you help me carry these bags?
You have no money to buy something.
E.g. Could you pay for me?
Your little brother took your phone.
E.g. Can you give back my phone?
You are really thirsty.
E.g. Could you give me some water?
Your nose is runny.
E.g. Could you give me a tissue?
The math problem is too hard.
E.g. Could you help me solve this math problem?
Your friend has cookies and you're hungry.
E.g. Can I have a cookie?
You don't have a pencil.
E.g. Could you lend me a pencil?
Your friend's music is too loud.
E.g. Can you turn down your music?
A thief stole your phone in a cafe.
E.g. Would you call the police?