What is one of then doing?汉译

What is one of then doing?汉译 there is more then one kind of english all overhe What is the end of one hundred? what is one fifth of thirty? 脑筋急转弯when one doesn't know what is it,then it is something;but when one knows what is it ,then it is nothing (不好意思啊） What is the number that is one half of one quarter of one tenth of 400? Then what is it? What is one one? What colour is the best for Halloween?For one of my school assignmentsAcctually i need to know because i have blue paper,but if blue doesnt suit then ill go with something else then...Please give me ur opions 英语翻译In the face of a person who is unreliable,how many expection there is equivalent to how many disappointed.If the two people pieced together is more tired than one person ,then what is the reason to insist on. One of the most dangerous forms of human error is forgetting what one is what is your sex then? What do you think of Then is over ,this is now? What is one very important part of Native Amerrican culture? one for each of the children.what mean is it? pull one's weight?what is meaning of that? there are 10 liters of alcohol in a container .after pouring out one liter ,fill it up with somewater;then repeat the experiment twice .what is the concentration of alcohol in the container now? i surfed the internet and then called one of which the telephon number is providedof which