TASK DEFINITION: Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.
PROBLEM: Food waste is transformed into soil-like humus in three to ____ days.

SOLUTION: seven

PROBLEM: Object permanence is seen in children ____ to twelve months old .

SOLUTION: eight

PROBLEM: Lithographic crayons come in ____ different degrees of hardness.

SOLUTION:
six