Swedish is a magical language. It resolves the uncountable vs. countable issue in English - less/fewer but more/more - via the symmetric mindre/färre and mer/fler. But it also lacks a dedicated word for "dentist" and "gums": Tandläkare (tooth doctor), and tandkött (tooth meat).
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Not really, "varv" has the linguistic implications associated with both "lap" and "turn". I haven't seen the XKCD yet, but I'm assuming you mean "gång", as it pertains to multiplication. It works if you suspend disbelief.
"En gång" - "one time." "Två gånger" - "two times." "Fyra, fem gånger" - "four, five times". It also works as "going" when coupled with other words, with loose literalism: "Ingång" - "Ingoing" - "Entrance" "Utgång" - "Outgoing" - "Exit"