Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

A sundial has the fewest moving parts of any timepiece. Which has the most?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

On rolling two dices (six-sided normal dice) together, what is the probability that the first one comes up with a 2 and the second one comes up with a 5?

How many triangles can you find in this given picture?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

A police officer was passing by when he saw a guy hiding. He walked up to him and genially asked, "What is your name?"

"Shut up!" the boy responded.

"Where are your manners?" asked the outraged police officer.

"Up that tree," said the boy discourteously, directing to a neighbouring tree.

You're looking for trouble, aren't you?" said the police officer.

"No, trouble is looking for me!" the boy answered solemnly.

Why is the boy behaving like this?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.