Forum:Summoning questions

Hi, Ive got some questions about summoning: 1) Can I summon a monster (normal) and flip-summon another one in the same turn? (I think I cant but Im not sure) 2) Can I special-summon a monster in face-down position? Or I always must special-summon in face-up position? (if the card that allows me to special summon says nothing about it)