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

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

What building has the most stories?

what does this below rebus represent identXQQQQQME

I can write cow in 13 letters.

Can You?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

Which word does the below Plexor means ?

What is the word or phrase?

A large water tank has two inlet pipes (a large one and a small one) and one outlet pipe. It takes 3 hours to fill the tank with the large inlet pipe. On the other hand, it takes 6 hours to fill the tank with the small inlet pipe. The outlet pipe allows the full tank to be emptied in 9 hours.

What fraction of the tank (initially empty) will be filled in 0.64 hours if all three pipes are in operation? Give your answer to two decimal places (e.g., 0.25, 0.5, or 0.75).

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?