Good Riddles

Question: I get dirty in about 5 days but it takes half an hour to clean me. It takes a long time for me to be tall but I can be short in about 2 seconds what am I ?

Question: there was a man who wanted to treat his son he went to the doctor and the doctor told him that he need to get 1 orange in order to cure his son on the the same village where the man was staying there where no any single orange, so the man tried to another village when the man reached another village he saw millions of oranges in the garden when he reached the entry he realised that this garden had for 4 gates and each gate had a gatekeeper so when ever he could pass by each gate keeper they where telling him that whichever organges he bring ,they should share in between. so how many oranges did the man come out with from the garden to share with the gatekeepers and remained with 1 orange to cure his son?

Question: Tommy is in a cave. He stops to find two tunnels. There is a guard before each tunnel. Tommy knows two things: 1. One tunnel leads to the fields of punishment and the other fields of rewards 2. One guard always lies and the other always tells the truth. Tommy can only ask one yes or no question to either one of the guards. The tunnels and guards look exactly the same. What question can Tommy ask to get to the fields of rewards and not death?

Question: IF I WILL TAKE OUT ITS FIRST THIRD AND LAST LETTER STILL IT WILL SOUND THE SAME

Question: A thing which is Live ,as we use it Everyday for watching this Beautiful Nature,and has high auto-focusing strength!!! so what is it??