4 turtles took part in a 100-m race. Below were their replies when their friends checked up on how each of them was doing.
Fanfo: I was in neither the second place nor the last one to complete the race.
Momo: I was the best!
Round neck: I was beaten by none.
Long tail: I was faster than Momo.
One of the turtles did not tell the truth. Reveal the results to their friends.