Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???

Which is the smallest number that you can write using all the vowels exactly once?

Which city is three-fifths chick two third cat and 50% goat?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

Can you count the number of squares in the given picture?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.