You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

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

The centre of the third figure is empty. What digit should fit inside?

A man is trapped in a room. The room has only two possible exits doors. Through the first door there is a room constructed from magnifying glass. The blazing hot sun instantly fries anything or anyone that enters. Through the second door there is a fire-breathing dragon. How does the man escape?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

What does below science rebus mean?

Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

Make a sentence consisting of three words that have the whole alphabet.

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.