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?
Answer is DICE
Its Always 1 to 6: numbers on all sides
Its Always 15 to 20: total of all numbers on dice viewable on rest is always between 15 to 20 ( 1+2+3+4+5=15 or 2+3+4+5+6=20)
Its always 5: When on rest one can see only 5 sides
Its never 21 unless its flying: if on rest its total can be 15 to 20 but when flying in air total of numbers of all side is 21(1+2+3+4+5+6).
Eternally I am 1 to 6,
Eternally am 15 to 20,
I am always 5,
But I am never ever 21 unless I am flying,
What am I ?
On behalf of Sture Sjöstedt
A magic wish-granting rectangular belt always shrinks to 1/2 its length and 1/3 its width whenever its owner makes a wish. After three wishes, the surface area of the belt's front side was 4 cm2.
What was the original length, if the original width was 9 cm?