Careem Software Development Engineer interview questions

I was given an easy test followed by a meeting with the HR. In the meeting, I was told about the 5 stage process in which I had cleared the first stage that was the test. The second stage was a front-end interview where I was given a basic javascript problem related to promises. After that, I had an Algorithms interview which was mid-hard difficulty level. I wasn't able to solve the problem and that was the last stage I could reach.