Which Burger Is Different in below image?

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

Can you count the number of triangles in the given figure?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Find the next number in the series.
1 10 24 43 67 ?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

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?