Based on the percentage distribution of teachers across six universities (A: 11%, B: 17%, C: 19%, D: 6%, E: 29%, F: 18%) where the total number of teachers in University E is 1856, if L and M are the total number of teachers in Universities A, B, and C together and Universities D, E, and F together, respectively, then the value of M - L is exactly equal to the number of teachers in which university?

In a data table, the production of rice for country Q and country R is 60 lakh tons and 54 lakh tons respectively. The production of wheat for country S and country T is 52 lakh tons and 52 lakh tons respectively. What is the ratio of the total production of rice of countries Q and R to the total production of wheat of countries S and T?

In a survey of 5 countries (P, Q, R, S, T), the rice production values are 40, 60, 54, 70, and 51 lakh tons respectively. What is the average production of rice (in lakh tons) across all 5 countries?