A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

Decode this picture on T-Shirt and tell what it says ?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

There is a square piece of paper with a hole that is denoted by the circle on the top right side in the given picture. You have to cut the paper in a manner that it forms two and only two separate pieces of paper and then rearrange the pieces in a manner that the holes come in the centre of the paper.

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

I left my campsite and hiked south for 3 miles. Then I turned east and hiked for 3 miles. I then turned north and hiked for 3 miles, at which time I came upon a bear inside my tent eating my food! What colour was the bear?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

Can you make four (4) nines (9) equal 100?