Quant

It's always 1 to 6, it's always 15 to 20, it's always 5, but it's never 21, unless it's flying. What is this?

 

sol>

dice

1 to 6 face of dice!!
rest position hoy etle 5 face thay....!!
total of any 5 at rest position 15 to 20 !!
nd in Air
6 face r there....so total of dat(1+2+3+4+5+6) = 21.