Do You See It?

Can you find out the missing number in the grid?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

A pet show was happening in my locality. I went down along with my kids. In that show, I noticed that all except two of the entries were cats. All except two were dogs and all except two were Monkeys.

Can you find out how many of each animals were present in that pet show?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

I have branches, but no fruit, trunk or leaves. What am I?

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

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?