If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

In a family supper, a grandfather, a grandmother, two fathers, two mothers, four children, three grandchildren, one brother, two sisters, two sons, two daughters, one daughter-in-law, and one mother-in-law need to sit at a table.

There are only seven chairs available at the place. How many more chairs do they have to borrow so that everyone can sit down together for the suppers if everybody requires a separate chair?

When can we add 2 to 11 and get 1 as the correct answer?

Why do we preferably have round manhole covers and not square ones?

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?

Through your logical capabilities, can you make 7 an even?

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?

What is the largest number you can write with just 3 digits?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"