Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

How can you write nineteen in a manner that if we take out one, it becomes twenty?

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?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

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 the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

What seven-letter word has hundreds of letters in it?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?