Management Solutions Data Science Consultant interview questions

Initial phone screen, then invited to the office for a group case study type interview with a 20 minute math test (nobody got close to finishing at all during that time limit), then had a Skype interview with HR. Didn't hear anything for months and after some prompting they said I'm on some type of waiting list for a suitable project that matches my skills. Never got the opportunity to meet anyone except one HR woman which was a little weird and never felt like they remembered who I was as a candidate from one moment to the next.