Posts from Paradox or Riddle. Brain-training exercises.

It can be 1, it can be 2. The main thing is that it initially contains no water and can remain in this state indefinitely until we remove a hypothetical plug from it or pierce it with a drill, whichever works best. The word "floats" should not imply anything else; otherwise, it doesn't float, it sinks.

But doesn't that mean that a part of the cup sticks out above the water's surface, and if it sinks, it will displace some water? Isn't that right?

Water has already been displaced initially; otherwise, buoyancy cannot be ensured. The mass of the displaced water is equal to the mass of the cup with the bolt inside. The volume of the water initially displaced is its mass divided by its density. The volume of the cup walls with the bolt is their total mass divided by their average density, which is greater than the average density of water (otherwise, the entire system would sink). That is, the volume of the cup walls with the bolt is less than the volume of the water initially displaced, regardless of what is protruding. When the system is submerged, it will displace only the volume that it occupies, but this is less than the initial volume.

Archimedes' principle, in general.

Kosh understands me.

Okay, you’ve convinced me!

Basically, if you make a hole in a cup, let's say with bread, put a "small object" in it, and then pour water, then yes, the bread will get soggy, the cup will sink, and the water won't spill. It's a test of attention!)))
Cop, catch the Eagle!)

Added after 2 hours and 51 minutes
Let's do it this way: Whoever guesses correctly gets to ask the next question. It will be fairer and more interesting. Let the questions be in the same simple style.

OKAY, I'LL ASK A RIDDLE!!!!1

Riddle: There were two brothers. One of them got on a train, and before that, he went to a store to buy a newspaper. While on the train, he read about his brother, who had become famous that day. After that, he sincerely rejoiced in his brother's fame and killed himself!
Why did he do that?

Was he from your hometown?

he is a twin.

Was he your fellow countryman?

He's a twin.

Both statements are true, but they don't help in finding the answer, lol.

My friend helps me. I just don’t feel like writing it all out.

No, you don't have the correct answer, and you just made it all up!

Someone wrote this brother’s name in a death note, stating that he would commit suicide.

Last time you didn't want to play.
/topic/6450/

Added after 1 minute
In general, this is where you should ask questions that can be answered with "yes," "no," or "doesn't matter."

Did your brother become infamous for something bad?
Could someone mistake the person who got on the train for your brother?