nah i can´t whistle. Sometimes i accidently discover how to whistle for like half a second and then it´s just gone.
I can whistle and dog whistle. I can do a wide range of tones as well. Both exhaling whistle and inhaling whistle. I can also make a whistle sound by swinging a sword or stick.
No.... That one time when i cant whistle and my friend near me is showing off the skill with glee... Spoiler i pulled his lower lip hard ^^
Never learned how to. If the universe aligns in a specific way, I could whistle out a clear tone. Forget about a melody tho.