InterviewBit Problems   Meeting rooms : Unsolved

About the Meeting rooms : Unsolved category (1)
Can anybody help, why it is giving wrong answer? (2)
A Clarification for the problem statement (1)
Java I/O broken? (1)
How can this be wrong (2)
It should be clearly mentioned, when there is an overlapping situation! (4)
Getting TLE even though solution in nlogn (2)
How is this wrong? (2)
N^2 will give tle (2)
Broken in Javascript? (1)