One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

Find the last number in the series below:

voN luJ yaM raM ---

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

I am an odd number. Take away a letter and I become even. What number am I?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Count the number of triangles in the picture below:

A newspaper is supposed to have 60 pages, but pages 24 and 41 are missing.
Which other pages won't be there?

By using 'because' continuously three times, can you make an English statement ?