Please help with questions 2.7 & 2.9

Exercise 2.7. Show that the celebrity problem can be solved by using3n log n - 3 questions (assume that n is a power of 2). (Hint: Group people into pairs - similar to a knockout tournament, e.g., Wimbledon tennis tournament.) Exercise 2.9. Complete the solution (proposed in Section 2.3.1) to the n- queens problem by giving a solution for values ofn that leave a reminder of 2 or 3 uhen divided by 6, (Hint: Solve for n = 8 and try to generalize.) Exercise 2.7. Show that the celebrity problem can be solved by using3n log n - 3 questions (assume that n is a power of 2). (Hint: Group people into pairs - similar to a knockout tournament, e.g., Wimbledon tennis tournament.) Exercise 2.9. Complete the solution (proposed in Section 2.3.1) to the n- queens problem by giving a solution for values ofn that leave a reminder of 2 or 3 uhen divided by 6, (Hint: Solve for n = 8 and try to generalize.)