Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

What's the next in the series?

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

Chhote se Chintu Miyan,
Lambi si Pooch.
Jahan Jaye Chintu Miyan,
Wahan Jaye Pooch.

छोटे से चींटू मियाँ,
लंबी सी पूंछ।
जहाँ जाये चींटू मियाँ,
वहाँ जाये पूंछ।

Bolo kya?

Thirty friends were on a hiking trip when they decided to enjoy the bonfire. They assembled for it and agreed to play a game. For that, they divided themselves into five teams with seven members each, forming five rows.

How did they manage to achieve this formation?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

John is found dead in a bare field. Nobody killed John,
John did not commit suicide.

Inspector Jacob found a bag just a few meters away from John which could save his life. What was in the bag?

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