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

I taste better than I can smell. Who am I?

When it is alive we sing, when it is dead we clap our hands. What is it?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

A gardener planted the Lemon trees in a mathematical ordered way (i.e. he planted a tree in rows).
He created a total of 19 rows of trees.

Note: There should be more than 2 trees to count as a row.

What is the minimum number of trees required by the gardener to have 19 rows of trees?

I guess 76.8% of readers will like this riddle.

What's the least number of people should read this post?

An explorer goes on an exposition in the jungle. He sets up camp in the middle of the jungle. The next morning he sees something with a head and a tail, but he is not afraid. What did he see in his bag?

This was asked in an interview with Coa-Cola.

The interviewer has given me 100 marbles(50 white and 50 black) and two empty boxes.
He then told me that he will leave the room and i need to place all the marbles in two boxes.

And When he come back, he will draw a marble from any of the two box and if the marble is white I will be hired.

Also
* No box can be empty.
* All 100 marbles must be placed in one of the two boxes.

So what should I have done?

What has many teeth, but cannot bite?