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: Casinos have ____ windows and they have no clocks.

SOLUTION: no

PROBLEM: Cleavage is perfect in ____ directions forming rhombs.

SOLUTION: three

PROBLEM: Men are ____ times more likely to have abdominal aortic aneurysms than women.

SOLUTION:
three