Solve the following series:
AZ, GT, MN, __, YB

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

How many times can you subtract the number two from the number fifty?

The more you take me, the more you leave me behind.
Who Am I?

Complete the table series riddle by finding the number that can replace "??".

What does Alexander the Great and Winnie the Pooh have in common?

How do you go from 98 to 720 using just one letter?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

Five lovely ladies(Sophia, Isabella, Madison, Emma and Olivia) planned a picnic.

They each buy one thing each for the picnic.

Sophia, Emma and Olivia got a drink : orange-Juice, apple-juice, and mango-juice.
Olivia got the drink with the same letter as the one in her first name.
Emma loves mango-juice.
The other two bring some food : chocolates and pizza.
Also Madison is allergic to cheese.

So which ladies bought what ?

What came first, the chicken or the egg?