Question

What is Zeno's paradox?

Answer 1

Zeno's paradoxes are a set of philosophical problems generally thought to have been devised by Greek philosopher Zeno of Elea (ca. 490–430 BC) to support Parmenides's doctrine that contrary to the evidence of one's senses, the belief in plurality and change is mistaken, and in particular that motion is nothing but an illusion.
for more reading https://en.wikipedia.org/wiki/Zeno%27s_paradoxes