Nature, Published online: 26 February 2026; doi:10.1038/d41586-026-00583-z
Today’s puzzle is a new twist on a classic genre: the “common knowledge” hat riddle in which logicians deduce facts about their hats based on what they know, and what they know others know.，推荐阅读搜狗输入法2026获取更多信息
What are the best things to buy during Amazon's Big Spring sale?An Amazon sale means some of the best savings will be on Amazon devices like Echos, Fire TVs, and Kindles, but the reach of its spring sale goes far beyond that. With the focus on the spring season, expect to see lots of savings on outdoor gear like furniture, grills, tents, and power stations. Plus, there will be plenty of classic big sale savings on TVs, laptops, headphones, and tablets.，更多细节参见搜狗输入法下载
6.3 inches (FHD+)