Well, I tried to see a young woman, but didn’t see her. I tried to block out parts of the illusion and still looked like an elderly woman. Maybe MY perception is off  Liked this one. Please keep these coming
The nose of the elderly woman in the chin for the young one, if that helps. I love this illusion.

I even traced it and it’s still a spiral
wow! this made my head hurt a bit but I traced it and it worked!
The tracing totally does work! This is really cool!

When you go in it looks like there is a sun in the middle =)
This was the first of these I’ve seen. Interesting and fun illusion.
WHOA…..took me back to the 60’s .Good one

It seems like the dots move from the actual intersection that I look at. Pretty cool!

Awsome! Thanks for bring this category in, i love these!

because he was wearing his uniform !

One of the possible solution is given below:
Aaron lost to Brad, but won every other game for a total of 3 points.
Brad beat Aaron, but tied in all other games for a total of 2.5 points.
Christopher beat Danny and tied with Brad and Elvis for 2 points.
Danny beat Elvis and tied only with Brad for 1.5 points.
Elvis tied with Brad and Christopher for 1 point.

2418 is the answer.

The algo that has been used here is

A $ B $ C $ D = [first digit of (A * D)] [last digit of (B * C)] [first digit of (B * C)] [last digit of (A * D)]

Using the same algo,
7 $ 2 $ 7 $ 4 = [first digit of (7 * 4)] [last digit of (2 * 7)] [first digit of (2 * 7)] [last digit of (7 * 4)]
= 2418

As we draw on a paper (see the figure) we find out that B is located on the North-East of E.

Let us say that A has P no. of chocolates and B has Q no. of chocolates right now.
Now according to the question:
P + 1 = Q – 1
=> Q – P = 2 —— (i)

Also, P – 1 = (Q + 1) / 2
=> 2P – Q = 3 —— (ii)

Equating (i) and (ii)
P = 5 and Q = 7

Therefore, A has 5 chocolates and B has 7 chocolates right now.

11550

Total number of rectangles and squares will be equal to: (Summation of row numbers) * (Summation of column numbers)
= (1 + 2 + 3 +……+ 19 + 20) * (1 + 2 + 3 +……+ 9 + 10)
= 210 * 55
= 11550