A wife vows not to eat honey 'just for today.' Is this a vow her husband may nullify?
Severity and duration are irrelevant. Any vow causing the wife genuine personal affliction — even 'not to eat honey today' — falls within the husband's nullification authority.
Question 2
A wife vows that her husband may not benefit from intimacy with her. Must the husband nullify this vow?
When a wife forbids her husband from benefiting from intimacy, the husband need not nullify — she remains permitted to him. The restriction is on him, not on her, so no nullification is required.
Question 3
A husband hears his wife's vow and says nothing that day because he forgot that he had the right to nullify. Can he nullify it the next day?
The Rambam rules that if he remained silent out of ignorance (not knowing he could nullify), he may nullify immediately upon learning — but must act without delay.
Question 4
A husband nullifies his wife's vow, but it later turns out he nullified the wrong vow by mistake. What must he do?
An erroneous nullification has no legal effect. He must redo the nullification correctly, targeting the actual vow his wife took.
Question 5
A wife vows not to benefit from her father-in-law and brothers-in-law. May her husband nullify this?
Vows that disrupt the wife's relationship with her husband's relatives affect marital harmony. The husband has authority to nullify such vows even if they don't directly restrict his own actions.