I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.

Hint: The grid reads the same across as down.

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

What does a man do only once in his lifetime, but women do once a year after they are 29?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

We know that the number 7 is the prime followed by a cube. Which next number is also a prime followed by a cube?