There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

I am sure no one can have two things for dinner. what are they?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

For an extra income, John decided to work at a Hotel for one hour daily. The manager offers him that they will pay him $11 after every 11 days.
However, John offered a different proposition to the manager. The offers stand as:
He will be paid just a penny on his first day.
Two pence will be paid on the second day,
Four pence will be paid on the third day.
And so on till the 11th day.

Should the Hotel manager accept his offer?

I add 5 to 9 and get 2. The answer is correct, so what am I?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

Decode the movie name from the below picture?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

Replace the question mark in the picture below.