There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

What does this mean?

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

Hint: The grid reads the same across as down.

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

I’m tall when I’m young, and I’m short when I’m old. What am I?

What word does this rebus represent?

meta meta
meta meta

Why is the Hole below a Lock?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.