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?

Find the next number in the series.
1 10 24 43 67 ?

What's a single-digit number with no value?

Solve the alphametic puzzle by replacing the alphabet with the number.

S T O R M +
S O L E S
=========
T O W E L
=========

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

O T T F F S S ?

You can see three almost identical images below. Can you spot the odd one out from them?

I make two people out of one. What am I?

The cream is heavier than Milk. True or False?

I have two coins.
* One of the coins is a faulty coin having a tail on both sides of it.
* The other coin is a perfect coin (heads on side and tail on other).

I blindfold myself and pick a coin and put the coin on the table. The face of the coin towards the sky is the tail.

What is the probability that another side is also tail?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?