There are a few set of questions, which you might be asked:
CV questions. Walk me through your resume OR tell me about yourself.
Why did you choose your university?
Why did you choose your faculty?
How you showed your social activity, and why this exactly?
Why do you have these hobbies?
2. Motivational questions are designed to understand your internal drivers to be a consultant
Why this region?
Why X firm?
3. Behavioral questions
by being prepared for this kind of questions, you can crack similar questions in any other company:
The Entrepreneurial Drive / Drive and Achieving Question
The Personal Impact / Persuasion / Conflict Resolution Question
The Leadership / Teamwork Question
Regarding the case-solving, Here is a good preplounge article:
Start by studying this one but don't waste your time studying plain theory because case solving is all about PRACTICE.
Here are some cases you might want to check out:
For Beginner level:
Laundry Chain - Revenue Increase
Launching Caskets in North Africa
For Intermediate level:
Grain Co-operative – Brand Launch
Case with a twist: Chinese Alloy Wheels – US Market Entry
I suggest you start with the intermediate level after you are confident with the beginner ones.
Hope it was helpful,