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: Most orthoptists work ____ hours a day, four or five days a week.

SOLUTION: eight

PROBLEM: Malaria kills up to ____ million people each year.

SOLUTION: two

PROBLEM: Object codes are the last four digits of the ____ digit account code.

SOLUTION:
ten