What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

What does this rebus mean?

O
N
C
E
TIME

Spot what is wrong here in below Picture?

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

Identify the 10 differences between the two given pictures.

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

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

Hint: The grid reads the same across as down.

Find the next number in the series below

21 32 54 87 131 ?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M