Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Kareena is older than Katrina and younger than Karishma. Isabelle is younger than Bipasha and Karishma. Bipasha is older than Karishma. If Kareena and Isabelle are the same age, who's the youngest?

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

Count the number of triangles in the picture below:

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?