Which is faster, Heat or Cold ? Explain.

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

Usually, a boxing match consists of twelve rounds. In a particular friendly match between two heavyweights, the match was finished in the ninth round itself as one of the boxers knocked out the other one.

But, in that fight, no man threw even a single punch.

How can this be possible?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

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

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?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Can you solve the below geography rebus by decoding the below rebus ?