Direction: Study the following information to answer the given questions:

There are eight persons A, B, C, D, E, F, G, and H who have an exam on two different dates, 12^th and 23^rd of four different months, February, March, April, and August.

B has an exam on the odd date but not in the first or last month. D has an exam on 12^th April. Three persons have exams between B and G. Two persons have exams before H. E have exam on an even numbered date in the month having less than 30 days. C has an exam before F. A have exam in the month having 31 days but not in the same month in which H and F have exams.