How to say in Czech: Where do I know them from?

English
Where do know from?
Czech
Odkud je znám?
Where are you going?
Where do I buy a ticket?
Do you understand them?
I do not know them.
I have known them for a long time.
I know them well.
I would like to get to know them better.
Everybody wants to get to know them.
Where am I from?
Where do I live?

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