Need help with this

Hello I need some help with these sentences:
How much did you pay for the glasses you're wearing?
Did you know that there are birds which can't fly?
We've just received the catalogue which we ordered a week ago.
The program whose I downloaded yesterday is really great.
The Titanic is the famous ship which sank in 1912.
Yesterday I found a puppy whose left leg was broken.
Are they correct? MANY THX
Answer #1
up
Answer #2
The program which I downloaded yesterday is really great.
Answer #3
The program which I downloaded yesterday is really great. Titanic is the name of a famous ship which sank in 1912.
Answer #4
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