What's the only room from which no one can enter or leave

What is next number in the pattern below:

131 517 192 123 ?

Can you count the number of squares in the figure below?

The Little ant seems to be always confused. Do you know why?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

When it is alive we sing, when it is dead we clap our hands. What is it?

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

There are a hundred statements.

First person says: At least one of the statements is false.

Second person says: At least two of the statements is false.

Third person says: At least three of the statements are false.

Fourth person says: At least four of the statements are false.

..

..

..

Hundredth person says: At least a hundred of the statements are false.

Analysing it, how many statements do you think are false and how many are true?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?