Move four matchsticks to the below square to form three squares?

There is one four-digit whole number n, such that the last four digits of n2 are the original number n

Do you see only foxes? It’s time for you to unlock the superpowers to find the baby squirrel hidden in the picture.

Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

With the following rules:

(A) White can make up to 10 legitimate moves until all kings are checkmate.
(B) White can take any black piece except the king.
(C) The White King cannot be in check position at any time of the game.

Can you checkmate all kings in less than 10 moves?

Be active and find the killer in the picture Riddle below.

Given the numbers between 1 and 1 million, what is so special about the number 40 that it makes the number stand out of the crowd?

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