You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

Can you name some countries which do not have the alphabet 'A' in them?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

Replace the question mark with the correct number in below Picture:

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

There are three light switches outside a room. One of the switches is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb?