1-There is something for him to do.
2-I have something for him to do.
Do these mean:
a-that there is something he can do (He is bored. There is something for him to do).
b-that there is something I (or someone else) want him to do.
c-that there is something he has to do.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.