What is ball tampering in cricket? How can we say ball is tampered? Any punishments for tampering?Can some body list the names of players who was punished.

I just want some opinions, some personal experiences and, if it's possible, some explanations. I'm a sport fan, playing ( at amateur level ) numerous sports. 10 years ago, I was quite good playing tennis-table on several amateur competitions and even in present I'm playing often with my friends....

I was surprised to read the following statistics regarding the success rate of national teams in football penalty shootouts:  NATION  PENALTY SHOOTOUT WIN/LOSS RECORD   Argentina 73%   Germany 71%   Brazil 64%   France 50%   Sweden 50%   Uruguay 50%   I...

This weird-ass rounded things in the "nosecone" (the part that's near your head) with soft grips - I can't find youtube video or any other instructions what to do with them. Can someone help me please?