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.

Harpists spend ninety percent of their lives tuning their harps and ____ percent playing out of tune.
ten

Women are ____ times more likely to have bone thinning than men.
four

Most spiders have ____ eyes, but some have six, four or two.

eight