Ravi remembers that his mother's birthday is between the 13th and 19th of April. His brother remembers that their mother's birthday is between the 17th and 23rd of April. If both of them remember correctly, on which day is their mother's birthday?

In a team of 6 persons, there are 4 cricketers and 4 footballers. There is 1 actor and 3 musicians. A and B are musicians. C, D, and E are not musicians. D and E are cricketers. B, C, D, and E are all footballers, and two of them are musicians. If F is the actor, which of the following players is a badminton player?

There are 5 teachers in a school: A, B, C, D, and E. A and B teach Hindi and English. C and B teach English and Geography. D and A teach Mathematics and Hindi. E and B teach History and French. Which teacher teaches the maximum number of subjects?