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

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

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

What came first, the chicken or the egg?

In the four images below, can you find the odd one out?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

How many letters are in the alphabet?

Can you find out the remainder when 3^300 is divided by 5?