im having trouble getting these answer to these brain teasers..

1.knee 2.1234 3. Once
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light light US 4:56p.m

Thank you for using the Jiskha Homework Help Forum. Brain teasers and riddles are posted below this section. If these have to do with your homework, please give the entire instuctions of what you are to do. As you have posted it, I can not determine what you are to do.