Complete the following series. It.s very logical:

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

This is a picture puzzle. You have to guess the name of the movie that can be related to the picture.

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

If,

Akriti = 631
Levis = 521
Sroti = 521
Aneel = 533
Then,
Sunil =?

Can you replace the question mark with the correct number?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

This is a famous paradox which has caused a great deal of argument and disbelief from many who cannot accept the correct answer. Four balls are placed in a hat. One is white, one is blue and the other two are red. The bag is shaken and someone draws two balls from the hat. He looks at the two balls and announces that at least one of them is red. What are the chances that the other ball he has drawn out is also red?