1.What is clean when it is black and dirty when it is white?
2.Which letter is a drink?
3.Teachers write on me with chalk. I can't talk .What am I?794Please respect copyright.ＰＥＮＡＮＡ4V7e07UNyO
4.When do 2 and 2 make more than 4?794Please respect copyright.ＰＥＮＡＮＡG5EPw9LRLx
794Please respect copyright.ＰＥＮＡＮＡZFGO4sn5OR
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