I am quite hot but become too cold if you remove the first two letters. What am I?

A man dies of old age on his 25 birthday. How is this possible?

Find the number of squares in the below picture

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.

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

You walk into an old horror house. It has no power or plumbing. Once inside, you see three doors. Each door has a number on it. Behind each door is a way for you to die. Behind door number one, you die by getting eaten by a lion. Behind door number two, you die by getting murdered. Behind door number three, you die by an electric chair. You can’t turn back, so you have to go through a door. Which door do you go through?

What is next number in the pattern below:

131 517 192 123 ?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

What do you get if you add 2 to 100 four times?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?