Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

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

There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units.

Can you calculate the dimensions of this box with the given data?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

A kind heart person buy packed food at 3$/packet from United states and sells them at 1$/packet at Africa. After some time he becomes a millionaire.

How come the guy become millionaire ?

How can I get the answer 24 by only using the numbers 8,8,3,3?

You can use the main signs add, subtract multiply and divide.

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

With the help clues provided in the image, can you find the 5 digit key?