What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Kids with the most attentive eyes can spot a different watermelon in 4 seconds. Can you? Test your eyes now!

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

With the help clues provided in the image, can you find the 5 digit key?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Which is Odd One Out and why?

4377

3954

9862

8454

9831

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?