A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

If you paint a brown house white it will become a white house. If the stoplight changes from red to green, then the light is green. So, if you throw a white shirt into the Red Sea, what will it become?

How many triangles can you find in this given picture?

What can you hold in your right hand, but never in your left hand?

A man dies of old age on his 25 birthday. How is this possible?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

10+10 and 11+11 can give you the same answer.

Explain how?

When a clock is observed, the hour hand is at a minute mark and the minutes hand is six minutes ahead of it.

When the clock is observed again after some time, the hour hand is precisely on a different minute mark and the minute hand is seven minutes ahead of it.

Can you calculate how much time has elapsed between the two observations?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.