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.

Decode below rebus
D
N
A
T
S , D

Where do you go to learn how to make ice cream?

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209

You walk into a room and see a bed. On the bed, there are two dogs, five cats, a giraffe, six cows, and a goose. There are also three doves flying above the bed. How many legs are on the floor?

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

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

In which direction should the missing arrow point?

What do you call a fish without an eye?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.