Help with custom queries

Hi all,

I was trying to create two queries, but it seems that Query Creation Page don't allow me to fulfill my needs.

The queries are:
- Worst euro-dollar exchange rate (it seems there is no chance to create it, it must be predefined and I can only find the £-$ one).
- A page "on the fly" created from a specific list of sets (something like: SELECT * FROM Sets WHERE Number IN ('1111', '2222', "3333", etc... ) ).

Is there any chance to obtain these?

Thanks!