Why do we yawn ???

  There is no single scientific consensus on why we yawn !!!

It is generally  considered as involuntary reflex controlled by hypothalamus in brain that serves both physiological and social functions.

For years , people believed we yawned to  get more oxygen or expel carbon dioxide.

But breathing more oxygen does not change how much a person  yawns !!!

Popular theory suggests that yawning helps regulate body temperature. The stretching of facial muscles increase the blood flow to brain.

Contagious yawning is associated with empathy.  People who are more socially attuned are more likely to catch a yawn from someone they are close to  !!!

Yawning does not appear in new born babies.

It appears in chimpanzees, dogs, cats, wolves, lions and one species of parrot.

What does break the ice means ??

What does this idiom means  ???

"  Break the ice  " means to start conversation or activity to make people more comfortable in a social situation.

When people first meet, there is an invisible wall of silence and awkwardness.

This is            ICE         !!!

When someone starts talking ,  they are breaking this  "  ice  " so everyone can relax and open up.

In ancient times, ships would often get stuck in frozen rivers or seas.  At that time, smaller and stronger boats would be sent ahead to literally break the ice and clear the path.

Sharpness of Naseeruddin

  In the village, everyone knew how silly is Mulla Naseeruddin.

One day villagers decided to find a bride for Naseeruddin to marry. 

As Naseeruddin acts silly, villagers themselves have fixed a bride and made Naseeruddin to get married to that girl.

Now 2 days have been passed after marriage. 

Wife of Naseeruddin gave birth to a baby  !!!!

As soon as Naseeruddin came to know of this news, he hurriedly came with pen and paper near the new born.

Everyone questioned him about this behaviour. 

Naseeruddin said,   

If a child can born in just 2 days after marriage instead of 9 months, he must be able to read and write by this time   !!!! 

Bheja Fry question

 Question

A is 9 year older than B. In 10 years, A will be twice as old as B was 10 years ago. 

What is the present age of A and  B  ?? 

Answer

Let the age of A is x. 

Let the age of B is y. 

At present,  A is 9 year older than B

== >>      x =   y  +  9

In 10 years,  A age  x  +  10

In 10 years, B age y  -  10

It is given that A will be twice the age of B who was 10 years ago. 

==>>    x  +  10   =   2  (  y  - 10  ) 

Now substitute  x  =  y +  9

y  +  9  +  10  =  2y  -  20

y  +  19  =  2y  -  20

y =   39

Now substitute y in  x = y + 9

x =  48

Hence,

Present age of A  =  x  =  48

Present age of B  =  y =  39

Countries with longest coast lines

 Long Coastlines serve as the basis for marine life, fishing and international shipping lanes.

Such countries are -----

1.  Canada 

2.  Norway 

3.  Indonesia 

4.  Russia 

5.  Philippines 

6.  Japan 

7.  Australia 

8.  United States 

9.  New Zealand 

10.  China