Can you place six X (crosses) in below board without making three in a row in any way ?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

What does below chemistry rebus means?

A landlord calls both of his sons and tells them that their horses will now decide who will transfer the inheritance. He tells them to race along the land till the end and the one whose horse will be slower will win and be the heir to all the property.

Both of them keep wandering for days but to no result. Then they ask a wise man regarding it. The man advises them on the matter after which they jump on the horses and race as fast as they can till the end. Why did they do it?

What did the wise man say?

What does this rebus puzzle means ?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

What number should come in place of the question mark below?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?