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

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

John had a bag containing colourful marbles. The colours are red, green and blue. The total number of marbles he had in his bag was 60. There are 4 times as many red marbles as green marbles. 6 more blue marbles than green marbles. How many marbles of each colour did John have?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

I have an eye but still cannot see.

Who am I?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

A car key is hidden in the picture. Can you spot it.? Quickly test your eye power now!

Which tank will fill first?