How many famous paradoxes in Quantum Mechanic?

[cartuz]

How many famous paradoxes in Quantum Mechanic?
1. Schrödinger’s cat
2. Einstein, Podolsky, Rozen paradox
What else?

 

[caribou]

A few more...

von Neumann's measurement pointer superposition (later illustrated by Schrödinger as the cat paradox) and the related "von Neumann chain" created by measuring the measuring device with more and measuring devices so the problem spreads...

Indirect Measurement paradox

Delayed Choice paradox

 

[masudr]

I suggest you look up the word "paradox" in a suitable dictionary. It is a much stronger term than all of these posts imply. There is no single paradox within the mathematical framework of quantum mechanics.