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

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

Replace the question mark with the correct number in the below-given picture?

There is a five-letter word which has 3 consonants(all are same) and 2 different vowels.
Also, something wrong is associated with the word.

Can you name it?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

What's the best place to go shopping in the ocean?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

What is the coolest letter in the alphabet?