Table: pageant_results_2
Columns: region_represented
first_place
second_place
third_place
total_top_3_placements
first_place_winning_year_s_if_applicable

Question: What is the maximum number of 2nd places for Tajikistan?
SQL: SELECT MAX("second_place") FROM pageant_results_2 WHERE "region_represented" = 'Tajikistan'

Question: What is the maximum number of 1st places for the country with exactly 1 third place?
SQL: SELECT MAX("first_place") FROM pageant_results_2 WHERE "third_place" = 1

Question: How many values of total top 3 placements does Taiwan have?
SQL: SELECT COUNT("total_top_3_placements") FROM pageant_results_2 WHERE "region_represented" = 'Taiwan'