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

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

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

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.