4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

Why is Saturday stronger than Monday?

How many triangles can you count in the figure given?

What always comes into a house through the keyhole?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

Count the number of triangles in the picture below: