Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

What is the end of everything?

What is the next number in the series?

15 29 56 108 208 ?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

why number 8549176320 is one of a kind?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

What happened when the wheel was invented?