The answer to the riddle "What is one in a year, twice in a week, and never in a day" is the letter "E." It appears once in the word "year," twice in the word "week," and not at all in the word "day."
The letter "e" because its twice in lifetime, once in year, twice in week, and never in a day
The letter E appears twice in wEEk, one in yEar, but not in day.
The letter 'e'. It appears once in year, twice in week and never in day.
The letter 'e'. It appears once in year, twice in week and never in day.
The letter E. It is in the word 'week' twice, the word 'year' once and it's not in the word 'day.'
e
The letter "e."
The letter "e."
The letter e.
The letter e
the letter e
The letter E.