It will depend on what the lie was about. If the truth would have resulted in no license being issued, it would not be a legal marriage. If it is something such as the wrong age, but still old enough...
Yes. If a person is already married in the United States any subsequent marriage would be null and void legally unless the prior marriage had been terminated by a court decree. However, it would also...
In most states you need to be 18 or older, but in some states you can marry anytime you want with written permission from a parent or legal guardian from both sides.