Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

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

I have eight fingers and two thumbs but I do not live. What Am I?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

People put me on the table and cut me but do not eat me. What am I?

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?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

What building has the most stories?

Can you find out the total number of triangles in the given figure?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?