What is next number in the pattern below:

131 517 192 123 ?

On the dull night when the blonde was dozing, she heard an odd clamour and she saw that there was a bizarre man with a gun simply outside her home. So she raced to the telephone to call the police, however, she can't dial 911. Why?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

The dirtier I get, the whiter I look. Who am I?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Can you solve the below tricky visual equation?

Can it be possible to build a house that has all its four walls facing towards the South?