IBM Data Science interview questions

After applying on the website they sent over their IPAT test which amounts to an IQ test. After that I was sent a few cryptic emails asking about future plans for education. I didnt get response for about 3 months at which point out of the blue they said they send me a simple coding exercise. Another month went by and then they sent me an email saying that they had gone with another candidate. It was all very confusing. You'd think IBM would be able to do better than that.