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?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

Can you count the number of squares in the figure below?

Can you solve the photo plexer logic ?

Which word does the below Plexor means ?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

Can you arrange the six given marbles in a manner that each one of them is touching all four marbles of different colours?

What word begins and ends with an E, but has only one letter?