Why do dishwashers need salt?
Why do men have nipples?
Why do I have holes in my head?
Why do dishwashers need salt and washing machines not?
Why do I have two kidneys but only one liver?
Why is Oslo in Czechoslovakia?
Why do we say a pair of scissors, a pair of trousers etc?
Should I swallow or spit my phlegm?
Which of my bones is/are not attached to my skeleton?
Should I pour tea or milk first into the cup, or should I throw the tea away because it's horrible?
How fast does sewage travel to the sewage plant.
Should I swallow or spit out the toothpaste after brushing my teeth?