You sit in front of a computer terminal. To save a puppy from beeing eaten by a unicorn (I'll make up a better background next time) you need to enter the correct password of 4 letters. You are given a hint:
4:6 2:1 3:0 3:0 3:3 3:7 3:2 3:4 : 4:8 4:4 3:1 1:0 P A S S W O R D :
What is the Password?
Neither my son nor my father could solve this, unless they worked together.