its about trend. now everyone is doing about world cup. can post latest result. good traffic for sure.
Google will probably investigate this as it is quite a jump, but its organic and I presume you have done nothing wrong so it should be just fine. Enjoy the traffic!
Nothing wrong with it. It happens to my sites all the time. Sometimes we get lucky and we are mentioned on other huge sites.
Adsense records your page impressions daily not just your clicks. As long as the two remain proportionate with each other there should, theoretically, be no problem. A huge traffic boost usually accompanies a page rising in serps.
So, you still getting this hi traffic? How did you get it in the first place? We'd all like to know, that's for sure. Please share
Defiantly Google will check all the traffic you got from various places. If anything wrong Google will punish your website.