In a school, there were five teachers.
A and B were teaching Hindi and English.
C and D were teaching English and Geography.
D and A were teaching Mathematics and Hindi
E and B were teaching History and French. More than two teachers were teaching which subject ?

Answer: B. Hindi

Above information can be analysed as below:

 

English Hindi Mathmatics Geography History French
A X X X      
B X X   X X X
C X     X    
D   X X      
E         X X

Hence, Three teachers were teaching Hindi -- A, B and C.