Before the start of the BNP Paribas Open, Novak Djokovic, Roger Federer, Andy Murray, David Ferrer and Rafael Nadal were all asked five random questions about each other to see how well they really knew their competition.

Some of the answers from ATP top-five seeds were pretty funny, but it was the world’s No. 1–Novak Djokovic–who aced the test.

[BNPParibasOpen]