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

O T T F F S S ?

I have feet, but no legs. Which animal Am I?

I make two people out of one. What am I?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

You have $100 with you and you have to buy 100 balls with it. 100 is the exact figure and you can't go below or above the numbers and you have to use the entire $100. If there is no kind of tax applied how many of each of the following balls will you be able to buy:

Green Balls costing $6
Yellow Balls costing $3
Black Balls costing $0.10

Now, how many of each must you buy to fulfil the condition given?

I add 5 to 9 and get 2. The answer is correct, so what am I?

Take one out and scratch my head, I am now black but once was red. What am I?

A spaceship was lost. The detective was given a piece of paper. This was the location of the spaceship! This is what the slip had scribbled on it:
Juice, Umbrella, Potato, Ice, Tomato, Elephant, Rice.

Where is the spaceship?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

What is the coolest letter in the alphabet?