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: Blood donors can give blood every ____ weeks, or six times a year.

SOLUTION: eight

PROBLEM: Neuroblasts delaminate in five waves spanning approximately ____ hours.

SOLUTION: three

PROBLEM: Young rats are sexually mature in about ____ months.

SOLUTION:
three