Which word does the below Plexor means ?

Which is faster, Heat or Cold ? Explain.

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

Why is 6 afraid of 7?

If your uncle’s sister is not your aunt, what relation is she to you?

What can you deduce from the following BrainBat?

CRY
LMKI

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

It belongs to you, but other people use it more than you do. What is it?

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?

Count the number of triangles in the given picture.