What is so fragile that saying its name breaks it?

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

Explain how?

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

I have teeth but i don't bite. Who Am I ?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Count the number of triangles in the below picture?

A man is walking down a road with a basket of eggs. As he
is walking he meets someone who buys one-half of his eggs
plus one-half of an egg.
He walks a little further and meets another person who buys
one-half of his eggs plus one-half of an egg.
After proceeding further he meets another person who buys
one-half of his eggs plus one half an egg. At this point, he
has sold all of his eggs, and he never broke an egg.
How many eggs did the man have to start with?

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

Find the number of squares in the below-given picture.

If an electric train is travelling south, then which way is the smoke going?