What is the next number in this matchsticks series riddle?

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

Which is faster, Heat or Cold ? Explain.

Can you find the hidden animal in the picture below?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

I am sometimes honest
Sometimes dishonest
I can be sweet and also bitter
I can hurt you real bad and
also make u smile and blush ☺️
What am I?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

I have feet, but no legs. Which animal Am I?