Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

Which number should replace the question mark?

Which fur should we be getting from the Lion?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?