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

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

What does this say?

XLR8

A man is approaching a broad and barren land. He has a package with him. If somehow, he is unable to open the package before reaching the land, he will die.

Can you guess what is present in the package?

In the Thar desert, 3 men found a big 24L Jar is full of water. Since there is a shortage of water so they decided to distribute the water among themselves such that they all have equal amounts of it. But they only have a 13L, a 5L and an 11-litre Jar.

How do they do it?

Find the next number in the series.
1 10 24 43 67 ?

What is the last thing you take off before bed?

Can you move 2 matchsticks to form four equal sized squares.

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

Which is faster, Heat or Cold ? Explain.