Solve problems involving a binary bit mask, valid parentheses, a logical AND operation, getting the middle character, and reverse factorial. Implement solve_tasks(mask, bit, left, right, parentheses, text, factorial_value). Return a dictionary with bit_set, logical_and, valid_parentheses, middle, and reverse_factorial; for even-length text, middle contains the two middle characters, and reverse_factorial is the integer k where k! equals the input, or -1 if none exists.
def solve_tasks(mask, bit, left, right, parentheses, text, factorial_value):