What is next number in the pattern below:

131 517 192 123 ?

Before Mount Everest was discovered, what was the highest mountain in the world?

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

Can you place six X (crosses) in below board without making three in a row in any way ?

There's a day, that comes around once a year.
To celebrate the man, you hold dear.
He gave you life, love and will pick you up if you fall.
When it comes to guys like him, He's the best of all.
Who is he?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

If eleven plus two equals one, what does nine plus five equal?

We know that the number 7 is the prime followed by a cube. Which next number is also a prime followed by a cube?

What does a man do only once in his lifetime, but women do once a year after they are 29?