What is next number in the pattern below:

131 517 192 123 ?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

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

Can you name some countries which do not have the alphabet 'A' in them?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

Find the last number in the series below:

voN luJ yaM raM ---

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

Which point will the car reach to go out?