Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Spot what is wrong here in below Picture?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not.

Is a married person looking at an unmarried person ?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

The below mentioned letters have been placed in a order using a logic.

DEAD, BALL, FEAR, SHOP

Can you find the logic?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside.
The man said, "Oh! I am really sorry, I thought this was my room."
He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man.
What made her suspicious of that man? He might have been genuinely mistaken.

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?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?