Multiple choice general knowledge math & puzzles What comes twice in a week once in a year but never in a day? Milkman News Paper Sweeper None of Above Reveal answer Fill a bubble to check yourself D Correct answer Explanation This is a letter-based riddle. The letter 'E' appears twice in the word 'week' (w-E-ek), once in 'year' (y-E-ar), and doesn't appear in 'day'. Therefore, the answer 'None of Above' is correct since none of the other options satisfy the riddle.