<prompt> Most common type of twin pregnancy is :Veex transverseBoth veexVeex breechBoth breech  <response>: Ans. is b i.e. Both veex In twins most common lie of both the fetus at term is longitudinal.deg Rarest lie is both the twins transverse.deg Presentations : Both veex Most common 60 Veex 1st - Breech 1Ind 20 Breech 1st - Veex 11nd 10 Both Breech 8 - 10 Note : Interlocking of twins is a rare complication seen in twins with 1st Breech presentation and Ind veex presentation. 