Load capacity of resistors in parallel or series connection?

Hello everyone, Given are two resistors of 270 Ohm 1 Watt. If I now connect these in parallel, the result is, who would have thought, 135 ohms. But with what power capacity? 1 watt? But what if I connect these resistors in series? Then I have 540 ohms, but what's the maximum power handling? 2…

Can I buy an office chair with a maximum load of 120 kg if I weigh exactly 120 kg?

I'm looking for a new office chair/gaming chair that shouldn't cost more than €200. But I usually only find ones with a load capacity of 120kg, but the problem is that I weigh exactly 120kg. Now I'm wondering if I can buy a chair like that? Or will the chair not be able to withstand…