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.

Q: Hamsters can live to be ____ to four years old.

A: three
****
Q: Plants have roots for ____ main reasons.

A: two
****
Q: Older men commit suicide ____ to six times the rate worldwide as do women, but there are anomalies.

A:
four
****