I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

I know a nine-letter word having only one vowel.
Do you ?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

Spot 5 differences in two Christmas tree below:

Aaron, Brad, Christopher, Danny and Elvis decided to play a game of tiddlywinks. In this game they decided that one win will get 1 point for winning, 0 for losing and 1/2 in case of a tie.

They finished the game in alphabetical order and it was found that the scores were different for each person.

Based on the following two statements, can you find out the result of the individual games?
Brad: No one could finish like me, without a loss.
Elvis: No one played worse than me, I finished without a single win.

Can you find the key in the picture below?

Can you identify if it's a murder or a suicide ?

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

Can you count the number of quadrilaterals in the picture below?