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

Find the next number in the sequence

5 12 24 36 ?

A spy was in Canada trying to steal insider information on how to set up new Maple Syrup factories in their country. He was introduced to the operations manager of the biggest factory in Canada. However, the manager was suspicious and decided to test him with a question before he trusted him. So he asked, “What would you be sure to find in the middle of Toronto?” The spy thought fast and came up with an answer for the manager. What was his answer?

Can you place six X (crosses) in below board without making three in a row in any way ?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

John went to buy some expensive, foreign chocolates. He only had Rs 100 with him. When he reached the shop, he got out and know that on those chocolates, there was a 15% import duty and 5% VAT.

How much worth chocolate should he buy so that he can accommodate it in Rs 100?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

What question can you never answer yes to?

When is the top of a mountain similar to a savings account?

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?