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

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

John is a strange liar.

He lies on six days of the week, but on the seventh day, he always tells the truth.

He made the following statements on three successive days:

Day 1: "I lie on Monday and Tuesday."
Day 2: "Today, it"s Thursday, Saturday, or Sunday."
Day 3: "I lie on Wednesday and Friday."

On which day does John tell the truth?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

81 x 9 = 801. What must you do to make the this equation true?

My location can be determined by the below rebus.
So where am i ?

Find the next number in the sequence

5 12 24 36 ?

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT

John is found dead in a bare field. Nobody killed John,
John did not commit suicide.

Inspector Jacob found a bag just a few meters away from John which could save his life. What was in the bag?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?