What do you see in the given picture?

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

How many times can you subtract the number 5 from 25?

You can see three almost identical images below. Can you spot the odd one out from them?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

A dying old man wants to divide his entire land between his only two sons. Since his only wish is to treat them as equal as both of them have been too good to him, he wants to divide his land equally between them. The problem is that the land is significantly irregular in shape and thus there is no choice of cutting them into two equal halves.

Can you help him divide the land in a manner that both of his sons will be happy?

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.