What is the key difference between AI, machine learning and deep learning? What are some real life examples?

Those are complementary notions. Like building blocks, they amount on top of each other to provide us, humans, with a more smart approach for processing data.

Artificial Intelligence is an umbrella term that refers to a theory and development of smart computer systems that mimic human cognitive functions, such as learning and problem-solving.

Machine Learning is one of the fields of Artificial Intelligence. The basic principle is that machines are fed on data and then learn from it. It is currently the most promising tool for business based on artificial intelligence.

Deep Learning is Machine Learning algorithms with a brain-like logical structure of algorithms. It’s a subset of ML-based on artificial neural networks. Unlike Machine Learning, neural networks don’t need any human intervention