Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Can you place six X (crosses) in below board without making three in a row in any way ?

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

Remove two matchsticks to make the below equation correct.

What has a ring but no finger?

What word is pronounced the same if you take away four of its five letters?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

Mr. Buttons was all set to go to the village of Buttonland to meet his friend. So, he packed his bags and left for the village at 5 in the morning. Upon travelling on a road for miles, he came across a point where the road diverged into two. He was confused on which road to take. He gazed around and he saw two owls sitting on a branch. He thought he could ask for directions for the village from the two owls. So he went to the tree. There he saw a sign which read, "One owl always lies, and one is always truthful. They both fly away if you ask them more than 1 question."
Mr. Buttons was caught in the dilemma of what to ask? And from which owl to ask, since he only had one question. What should Mr. Buttons ask?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

You need to remove two matchsticks to make the below equation true. Can you do it ?