Determine the amount of tax liability in each of the following instances:

Use the appropriate Tax Tables and Tax Rate Schedules.

1. A married couple filing jointly with taxable income of $32,991.
2. A married couple filing jointly with taxable income of $192,257.
3. A married couple filing separately, one spouse with taxable income of $43,885 and the other with $56,218.
4. A single person with taxable income of $79,436.
5. A single person with taxable income of $297,784.
6. A head of household with taxable income of $96,592.
7. A qualifying widow with taxable income of $14,019.
8. A married couple filing jointly with taxable income of $11,216.