My lie is that I can speak fluent Spanish. The only language I have had any success with (other than English... and even then fluency is elusive some days ;D) is signing.
I cannot whistle at all. I had jaw surgery before I got married and a muscle that is necessary for whistling was cut. I also did struggle with anorexia in high school. The lowest weight for me was 90 pounds. Thankfully I was able to recover and maintain a healthy weight.
Anybody else playing on their blog?