ION Group Technical analysts interview questions

They asked 4 puzzle questions and some DBMS, OS and CN questions.

You have two identical eggs and a 100-story building. The eggs are quite fragile and will break if dropped from a certain floor (or above). The floor from which the eggs will break is the same for both eggs. Your goal is to determine the highest floor from which an egg can be dropped without breaking, using as few drops as possible. Constraints: If an egg breaks, it is unusable. If an egg survives a drop, it can be dropped again. Question: What is the minimum number of drops needed to determine the highest floor from which an egg can be dropped without breaking?