Posts from Paradox or Riddle. Brain-training exercises.

Let's say I borrowed 100 rubles from a friend, went to the store, and lost them. Then I met a friend and borrowed 50 rubles from her, bought two chocolate bars for 10 rubles each, and had 30 rubles left. I gave those 30 rubles to my friend, and now I owe him 70 rubles and my friend 50 rubles, totaling 120 rubles. Plus, I have two chocolate bars worth 20 rubles.

That's a total of 140 rubles!

Where are the other 10 rubles?:smile50:

Damn, I lost 10 rubles.

But in the end, I still owed 120 rubles, 70 to a friend and 50 to a girl, and I also bought two chocolate bars like an idiot, so I found something to spend the money on.
So, consider that I added two chocolate bars worth 10 rubles each to the hundred.

Yes, chocolate bars that cost ten rubles are not worth buying. You should buy good quality ones.

It's been said before.

It's not a paradox))) I thought about it for a long time myself, and finally found 10.

I went down into the dungeon to the Orcs and hacked my way with a sword to their leader, taking the sacred ten rubles from him.

He must have remained; this isn't an asset, but a liability, and the chocolates are an asset.

If this is figured out, I still have plenty of brain-dissolving solvents in stock.

But I figured it out.

Actually, twice. And I figured it out even before reading the content of this thread.

And I was on Skype a week ago.

This isn't a paradox; it's a math problem with a flawed premise. It's a very simple riddle, suitable for elementary school. And it's quite old news, too.

Added after 56 seconds
And I... I solved it before all of you!

This isn't a paradox, but rather a math problem with flaws in the author's logic. It's a very simple riddle, suitable for elementary school. And it's quite old, too.

Added after 56 seconds
And I... I solved it before all of you!

Here's another one:
There are no iron objects in the room, except for two metal bars, one of which is a magnet.
How can you determine which of the bars is the magnet?

break one block in half