Here’s a crazy puzzle. Enjoy solving it and reply with your answer!
Imagine being in a large box with your box lying on the floor beside you. Your box contains a smaller copy of you and a smaller box inside and so on ad infinitum. You reach your hand into your box and pull out the smaller box. As you do this, you see a bigger hand coming from above and taking your box. Note that all the infinite copies of you have done the same. The boxes and the hands can pass through each other. So, there are no collisions.
Then, you put the box in your hand on the floor where your old box was. Where is your box now?
If you just want to read, I wrote my solution in a blog. What do you think?