This is from a show in Japan called "gaki no tsukai ya arahende". Or just gaki no tsukai if you prefer.

English Lessons

What goes on here is more or less self explanatory.

7 Henge

Another no-laugh challenge. A comedian comes in and does things to get the people in the room to laugh. Each person that laughs has to pay 1000 yen for each time they do so.

Sadist Hamada punishment (part 1)

Sadist Hamada punishment (part 2)

Watch both parts and you'll get it.