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

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *

What breaks yet never falls, and what falls yet never breaks?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

What's the only room from which no one can enter or leave

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Count the Triangle in the figure given below: