Is it true that one of the Apollo lunar modules flew without any legs?

Answer 1

Yes.

Apollo 5 was an unmanned Earth-orbital test flight of the lunar module. It was launched on a Saturn IB booster and, because it was not going to land anywhere, its legs were left off to save weight.

Answer 2

When the lunar modules landed on the moon, they had legs. However, when they took off from the moon, the legs were left behind and only the upper section of the lunar module returned to space to dock with the command module.

Answer 3

You asking about the Apollo command module (..which stayed in lunar orbit during the surface exploration..), the landing module (..which had legs..) or the ascent module (..that left the legged section behind and ascended back up to the command module..)???????????