In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

Find the next number in the series below

21 32 54 87 131 ?

Count the number of lines in the image below ?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

There is something which you can be arrested for attempting but not for successfully completing.

Why despite killing dozens of people Charley and Wilma were not punished?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

Why is the Hole below a Lock?