How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

Birbal was jester, counsellor, and fool to the great Moghul emperor, Akbar.
The villagers loved to talk of Birbal's wisdom and cleverness,
and the emperor loved to try to outsmart him.
One day Akbar (emperor) drew a line across the floor.
"Birbal," he ordered, "you must make this line shorter, but you cannot erase any bit of it."
Everyone present thought the emperor had finally outsmarted Birbal.
It was clearly an impossible task.
Yet within moments the emperor and everyone else present had to agree that Birbal had made the line shorter without erasing any of it.
How could this be?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

Solve the equation in the image by looking at the pattern closely.

They are three errirs in this question. Can you find them?