Mercer Testing Engineer interview questions

Got call from consultant and there was a scheduled walk in office premises. A Written exam was conducted followed by technical interview round and then a client round. finally the Hr negotiation.. Took 1 whole day in all.. sometimes they split it into 2 rounds or a telephonic one. The culture is nice, not very strict unlike other IT firms. People are good. shift timings usually 8 - 5 or 11.30- 8.30

First technical written. And 3 more one to one rounds