I seem to have a heightened sense of hearing.
At times, I've heard the phone ring when others haven't (only one phone in the room, and a movie was playing on full volume) and I was farther from the phone than them.
And one time, I was accurately able to tell how many marbles fell on the floor when a person dropped them, just by hearing them drop.
Both times I got a "How did he do that?" reaction from someone.