Complete the table series riddle by finding the number that can replace "??".

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Look at the picture and find out which square is not linked with any of the other squares.

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

John was drowned by he was not wet. How?

Count the number of balls in picture below:

Sweet & very intelligent katty has 8 puppets(Jane Bird Barbie Angel Colleen Nora Lass Missy).
All puppets are of different size. She arrange all puppets to face towards the guest and tell the guess the following clues :

* Jane has three puppets bigger on its left side
* Bird has two puppets smaller on its left side
* Barbie has one puppet bigger on its right side
* Angel has two puppets smaller on its right side
* Colleen has one puppet bigger on its left side
* Nora has one puppet smaller on its left side
* Lass has four puppets bigger on its right side
* Missy has three puppets smaller on its right side

Also some puppets are inside the bigger puppets.

Assuming you are the guest , can you tell the katty how the puppets are arranged ?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.