The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

The host of a game show, offers the guest a choice of three doors. Behind one is a expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What number when divided in half becomes zero?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

Can you make a six-letter word using the letters N, A and B ?

Akbar called Birbal and asked him to draw a line on the floor. He asked Birbal to make that line smaller without erasing it. Birbal smiled and did it before Akbar could blink his eyes.

How did he managed to do it?