I applied online, the process took 1 week. Was asked to take the online test, which is pretty easy. Got email immediately for scheduling a phone interview, which I scheduled in 2 days. Its all about the six degree problem.
In phone interview:
Same questions as added by others. For logical question I was asked, there are 4 sheets of paper with X, Y, 1, 2 written on it respectively. On the back of every paper with letter X there is an even number. I was asked, what pages I need to flip to prove this assertion.
Other questions were regarding the Six degree problem, focused on the answer I wrote in the online round. I don't know exactly what answer they are looking for.