The problem:
Mother is 21 year older than her child, after six years she will be 5 times older than her child. Where is the father

After 6 years the kid will be 5.25 years old and the mother 26.25 years old. That way, 6 years earlier the kid is only -0,75 years old (or - 9 months old) giving me that the father was having unprotected sex with the soon to be mother.

but, time is money: time = money;

which implies: girls = money + money;

which implies: girls = money^2;

but, money is the root of all evil: money = (all evil)^1/2;

which implies: money^2 = all evil;

therefore, all girls are evil: girls = all evil.