How Smart Are You (NO CHEATING)

Got bored so i made a simple quiz on maths, science and a little history... hahaha, NO CHEATING IF U WANT A REAL SCORE...

1 How many chromosomes are contained in an unfertilized ovum?
2 What is 758 squared?
3 What is 0.134g in mass times 15?
4 160 Rats are born a year, how many rats are born in 183 years?
5 In meiosis if the parent cell has 8 chromosomes how many does each daughter cell have?
6 7x2=A A+42=B B/15=C C is then squared Cx10
7 Who built Quarry Bank Mill And In What Year?