There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

What you cannot hold but it is yours?

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

What is it?

How can you make number one disappear by adding something to it?

I am the fastest animal but cannot climb the tree. What am I?

Can you circle exactly four of these numbers such that the total is twelve?

1 6 1
6 1 6
1 6 1
6 1 6

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

How many times can you subtract the number 5 from 25?