What type of ANN architecture to choose? I have $N$ number of teachers  each of which has an input feature vector ($25$ dimensional) consisting of positive numerical values for different quality of aspects (for example: lecturing ability, knowledge capacity, communication skills, etc.). I want to design an ANN to output a single quality index based on these quality features.
What type of ANN architecture is appropriate for this problem?
It sounds like you have structured/tabular data. So, a fully-connected feedforward network should do the job.