5. Around a round table, $2 n(n>5)$ people are sitting - knights and liars. Liars give a false answer to any question, while knights give a true answer. Each of them knows who is a knight and who is a liar. Each of them answered two questions: "Who is your left neighbor?", "Who is your right neighbor?". A wise man, who knows that there are liars at the table but there are fewer of them than knights, was informed of the number of answers "Knight" and the number of answers "Liar", and he accurately named the number of knights. How many answers "Knight" did the wise man receive? Explain your answer.
5. Two adjacent knights (R), like two adjacent liars (L), give answers "R" and "R", while adjacent R and L give answers "L" and "L". If the number of L is less than \( n-1 \), then in a group of consecutive R, the outermost R can be replaced by L, and we get the same set of answers with a different number of R. Also, L can be replaced by R if there are at least two L next to each other. Therefore, L is exactly \( n-1 \) and no two of them sit next to each other. Then the arrangement around the table looks either like -R-LR-...-L-RRR-L-, or -R-L-R-...-L-RR-L-...-R-L-RR-L-...-L-. In both cases, we get 4 answers "R".

Answer: 4.