how blonde r u ??????x

ditzy blonde , smart blonde, just plain reatarded ,brunnette ,genius

1 wats 4 + 10 - 21 ?? {no caculaters aloud !!!}
2 if u had a dog wat breed wud it bee nd wat wud u call it ??
3 if jimmys mummy had 5 kids called monday tuesday wednesday thursday wat waz the last one called?
4 if i had 6 pints of milk nd drank 7 nd a half how much wud i hav left ??
5 if yhuu cud choose ne job wat wud it be ??