What word does this rebus represent?

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Complete the following series. It.s very logical:

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

Can you replace the question mark with the correct number in the below table sequence?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

There is something which is always coming but never arrives?

Jim and Sarah are in a long-distance relationship. Jim buys an engagement ring for Sarah and wants to mail it to her. Unfortunately, the only way to ensure the ring will be received is to place a lock on the package. Jim has locks and Sarah has locks, but neither has keys for each other’s locks. How can they make sure the ring isn’t stolen?

A father's child, a mother's child, yet no one's son.

Who am I?

Why is the Hole below a Lock?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?