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

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

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

A woman named Maria was at the funeral of her mother. She met a nice young man that she had never seen before and after the service, they spent a bit of time together. Then she got busy and didn’t get his name or phone number before he left. She tried to find him, but no one knew who he was or how to contact him. A few weeks later, Maria’s older sister dies and the police suspect murder. Who killed the sister?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

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

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

What has many teeth, but cannot bite?