Which is Odd One Out and why?

4377

3954

9862

8454

9831

Three men in a cafe order a meal the total cost of which is $15. They each contribute $5. The waiter takes the money to the chef who recognises the three as friends and asks the waiter to return $5 to the men.

The waiter is not only poor at mathematics but dishonest and instead of going to the trouble of splitting the $5 between the three he simply gives them $1 each and pockets the remaining $2 for himself.

Now, each of the men effectively paid $4, the total paid is therefore $12. Add the $2 in the waiters pocket and this comes to $14. Where has the other $1 gone from the original $15?

The following four words might seem abrupt to you. But you can make them meaningful by just adding vowels.
RDSH
GGPLNT
TMT
NN

Hint: All of them are vegetables.

Replace the question mark in the picture below.

Can you make a fire with just a single stick?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

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

which number am I?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

I am eight letters long - "12345678"
My 1234 is an atmospheric condition.
My 34567 supports a plant.
My 4567 is too appropriate.
My 45 is a friendly thank-you.
My 678 is a man's name.

What word am I?

There is a place where if I stand up straight, I will still be considered sideways.