Spot 5 differences in two Christmas tree below:

What Does this text mean:

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

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Which tank will fill first?

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 count the number of lines in the below picture?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?