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

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

Can you solve the below tricky visual equation?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

Can you identify the famous TV character from the rebus below?

Replace the question mark in the picture below.

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

I look at you, you look at me I raise my right, you raise your left. What am I?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.