who is silent in the parliament?

Can you count the number of blocks in the picture below?

It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten-digit numbers.

But do you know how many of these numbers are prime?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

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

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

How many words can a pen with half refill write?

Readers with excellent visual skills can find three differences between the pictures of a rabbit and a fox in 11 seconds. Can you? Test your attentiveness now!