Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

What is common among 11, 69, and 88?

Find the hidden panda in the image below.

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

What is red and smells like blue paint?

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 = ?

What's the only room from which no one can enter or leave

Find the next number in the series.
1 10 24 43 67 ?