If it took eight men ten hours to build a wall, how long would it take four men to build it?

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

Why Aeroplane windows are round?

Can you place three balls such that the equation shown in the picture holds true?

The richest man in the city Mr Rechard is kidnapped. James Bond is appointed to the case. At the crime scene, a note is found written by Mr Richard. The note read:

"First of January, Fourth of October, Fifth of March, Third of June."

James Bond knew that somehow, the killer's name was hidden in the note. The following were the suspects:

Jack Richard, the son and the heir of property.
John Jacobson, the employee of Richard.
June Richard, the wife of Richard.

James Bond took only a few moments to deduce the killer's name. Can you tell who was the killer?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

What number do you get when you multiply all of the numbers on a telephone's number pad?

What is the longest word in the dictionary?

Which English verb becomes past tense just by rearranging the letters?

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable