I bought a really lovely vintage teak dining table from ebay. It is really nice (and was cheap) but it has several large black marks (which I assume are burn marks) and various scratches etc (I knew the condition when I bought it). It is used as our dining table and I have 2 little kids, so sees a lot of action.

I want to know how;

a) I remove the black marks and scratches
and
b) seal it so that if it gets marks or liquid spills on it, it won't get damaged.

I would like to keep the honey colour. Is this possible?

I don't have much space or money (live in tiny 2nd floor flat) so the solutions have to be practical.

Hoping someone can help and I attach photo of the black marks.