I can make a sound in my throat that sounds just like a piglet oinking. Also I can play trombone, which has been pretty useless ever since I graduated high school. Guitar, piano, bass, drums and even harmonica have turned out to be much more useful long term.
Wow! That is the most unique talent I can think of. Seriously, I tried to do that after reading it, I simply cant! You can read as fast you can otherwise and still count in the same speed?
I learned typing and I have reached a max WPM of over 90 when I was in prime (on a 2 mins drill without much special characters). It is due to this, I can say the English alphabets in the reverse order as fast I can say it forward (normal). Since, it is part of the typing practice to type abcedfghijklmnopqrstuvwxyz zyxwvutsrqponmlkjihgfedcba (over and over again).