IBM Software Developer interview questions

It was a campus recruitment process. First it started with an written test which was easy. Almost 80% of those who wrote cleared the test. Then we had letter writing in which we have write a letter to a client about an addv. This was the point were many got rejected. Then it was GD and an HR interview.

My experience started in August with a trip to my University's career fair. After discussing my resume, shaking hands, talking about my interests, etc. I was handed multiple individuals business cards and told to apply online for a couple different positions as well as take their aptitude test online (the one with the math and other items). I applied online to 3 (maybe 4 - I can't remember since it was a while ago) positions and about a week later, got the "Thanks but no thanks" declination email for all of my applications. So, I looked into other companies and accepted an offer. Fast forward a couple weeks: I get a call from a representative at IBM saying that I was going to be extended an offer and that details had already been sent to me (I checked my email while on the phone and there they were). I asked if they had the right person and they responded with my name. I was surprised to say the least and explained to them how I was told to try again next year a couple weeks ago and ask why I was being approached now. They said that after looking over my application, they thought I would be a great fit. I declined on the spot over the phone because I had already accepted an offer a week earlier. There were no interviews (save for my conversation at the career fair), no questions other than the aptitude test, just an offer out of the blue.